add provider and model

Author: tanner0101

Sources/FluentPostgreSQL/FluentPostgreSQLProvider.swift

@@ -0,0 +1,19 @@
+import Service
+
+/// Adds Fluent PostgreSQL's services to your project.
+public final class FluentPostgreSQLProvider: Provider {
+    /// See `Provider.repositoryName`
+    public static let repositoryName = "fluent-postgresql"
+
+    /// Creates a new `FluentPostgreSQLProvider`
+    public init() {}
+
+    /// See `Provider.register(_:)`
+    public func register(_ services: inout Services) throws {
+        try services.register(FluentProvider())
+        try services.register(PostgreSQLProvider())
+    }
+
+    /// See `Provider.boot(_:)`
+    public func boot(_ worker: Container) throws { }
+}

Sources/FluentPostgreSQL/PostgreSQLModel.swift

@@ -0,0 +1,7 @@
+public protocol PostgreSQLModel: Model
+    where Database == PostgreSQLDatabase { }
+
+extension PostgreSQLModel {
+    /// See `Model.Database`
+    public typealias Database = PostgreSQLDatabase
+}

Sources/FluentPostgreSQL/PostgreSQLPivot.swift

@@ -0,0 +1,8 @@
+public protocol PostgreSQLPivot: Pivot
+where Database == PostgreSQLDatabase { }
+
+extension PostgreSQLPivot {
+    /// See `Model.Database`
+    public typealias Database = PostgreSQLDatabase
+}
+