Add NIC asset model and repository

src/main/java/be/seeseepuff/pcinv/models/NICAsset.java

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+package be.seeseepuff.pcinv.models;
+
+import be.seeseepuff.pcinv.meta.*;
+import jakarta.persistence.*;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+@Entity
+@AssetInfo(
+		displayName = "Network Interface Controller",
+		pluralName = "Network Interface Controllers",
+		type = "nic"
+)
+@Table(name = "nic_assets")
+public class NICAsset implements Asset
+{
+	@Id
+	@GeneratedValue
+	private long id;
+
+	/// The generic asset associated with this RAM.
+	@OneToOne(orphanRemoval = true)
+	private GenericAsset asset;
+
+	@Description("The MAC address of the network interface controller.")
+	@Property("MAC Address")
+	@HideInOverview
+	private String macAddress;
+
+	@Description("The type of interface used by the drive. E.g.: SATA, IDE, etc.")
+	@Property("Interface Type")
+	@HideInOverview
+	@InputList
+	private String interfaceType;
+}

src/main/java/be/seeseepuff/pcinv/repositories/NICRepository.java

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+package be.seeseepuff.pcinv.repositories;
+
+import be.seeseepuff.pcinv.models.NICAsset;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+@SuppressWarnings("unused")
+public interface NICRepository extends JpaRepository<NICAsset, Long>, AssetRepository<NICAsset> {
+    @Override
+    default Class<NICAsset> getAssetType() {
+        return NICAsset.class;
+    }
+}