Add competition and coordinate model classes with enums and relationships

- Created `Competition`, `CompetitionType`, and `CompetitionContact` classes for representing competition details.
- Implemented `Coordinate`, `TrackCoordinate`, and `PositionValid` for geographical data handling.
- Added `ContactType` enum for competition contact categorization.

src/main/java/dev/coph/flightscore/backend/competition/Competition.java

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+package dev.coph.flightscore.backend.competition;
+
+import dev.coph.flightscore.backend.competition.contact.CompetitionContact;
+import dev.coph.flightscore.backend.coordinate.Coordinate;
+import dev.coph.simpleutilities.ulid.ULID;
+import lombok.Getter;
+import lombok.experimental.Accessors;
+
+import java.time.Instant;
+import java.time.ZoneId;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Locale;
+
+@Getter
+@Accessors(fluent = true)
+public class Competition {
+
+    private ULID id;
+    private String name;
+    private CompetitionType type;
+    private Instant startDate;
+    private Instant endDate;
+    private ZoneId timezone;
+    private Locale country;
+    private String location;
+    private String website;
+    private HashMap<String, Coordinate> commonLaunchPoints;
+    private HashSet<CompetitionContact> contacts;
+
+}

src/main/java/dev/coph/flightscore/backend/competition/CompetitionType.java

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+package dev.coph.flightscore.backend.competition;
+
+public enum CompetitionType {
+
+    WORLD_CHAMPIONSHIP,
+    CONTINENTAL_CHAMPIONSHIP,
+    NATIONAL_CHAMPIONSHIP,
+    STATE_OR_REGIONAL_CHAMPIONSHIP,
+    OTHER;
+
+}

src/main/java/dev/coph/flightscore/backend/competition/contact/CompetitionContact.java

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+package dev.coph.flightscore.backend.competition.contact;
+
+import dev.coph.simpleutilities.ulid.ULID;
+import lombok.Getter;
+import lombok.experimental.Accessors;
+
+@Getter
+@Accessors(fluent = true)
+public class CompetitionContact {
+    private final ULID id;
+    private ContactType type;
+    private String name;
+    private String email;
+    private String phone;
+
+    public CompetitionContact(ULID id) {
+        this.id = id;
+    }
+
+    public CompetitionContact(ULID id, ContactType type, String name, String email, String phone) {
+        this.id = id;
+        this.type = type;
+        this.name = name;
+        this.email = email;
+        this.phone = phone;
+    }
+}

src/main/java/dev/coph/flightscore/backend/competition/contact/ContactType.java

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+package dev.coph.flightscore.backend.competition.contact;
+
+public enum ContactType {
+
+    ORGANISATOR,
+    EVENT_DIRECTOR,
+    SAFETY_OFFICER,
+
+}

src/main/java/dev/coph/flightscore/backend/coordinate/Coordinate.java

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+package dev.coph.flightscore.backend.coordinate;
+
+import lombok.Getter;
+import lombok.experimental.Accessors;
+
+@Getter
+@Accessors(fluent = true)
+public class Coordinate {
+
+    private final double latitude;
+    private final double longitude;
+    private final double pressureAltitude;
+    private final double gpsAltitude;
+
+    public Coordinate(double latitude, double longitude, double pressureAltitude, double gpsAltitude) {
+        this.latitude = latitude;
+        this.longitude = longitude;
+        this.pressureAltitude = pressureAltitude;
+        this.gpsAltitude = gpsAltitude;
+    }
+
+    public Coordinate(double latitude, double longitude, double altitude) {
+        this.latitude = latitude;
+        this.longitude = longitude;
+        this.pressureAltitude = altitude;
+        this.gpsAltitude = altitude;
+    }
+}

src/main/java/dev/coph/flightscore/backend/coordinate/PositionValid.java

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+package dev.coph.flightscore.backend.coordinate;
+
+public enum PositionValid {
+    
+    FIX_3D,
+    NO_FIX_OR_2D;
+
+}

src/main/java/dev/coph/flightscore/backend/coordinate/TrackCoordinate.java

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+package dev.coph.flightscore.backend.coordinate;
+
+import lombok.Getter;
+import lombok.experimental.Accessors;
+
+import java.time.Instant;
+
+@Getter
+@Accessors(fluent = true)
+public class TrackCoordinate extends Coordinate {
+
+    private final Instant time;
+    private final PositionValid positionValid;
+    private final int gpsAccuracy;
+    private final int satelliteCount;
+    private final String additionalDigits;
+    private final double variometer;
+
+    public TrackCoordinate(Instant time, double latitude, double longitude, PositionValid positionValid, double pressureAltitude, double gpsAltitude, int gpsAccuracy, int satelliteCount, String additionalDigits, double variometer) {
+        super(latitude, longitude, pressureAltitude, gpsAltitude);
+        this.time = time;
+        this.positionValid = positionValid;
+        this.gpsAccuracy = gpsAccuracy;
+        this.satelliteCount = satelliteCount;
+        this.additionalDigits = additionalDigits;
+        this.variometer = variometer;
+    }
+}