use c# 6 for dialect providers

Author: mythz

src/ServiceStack.OrmLite.Firebird/Firebird.cs

@@ -4,6 +4,6 @@ namespace ServiceStack.OrmLite
 {
     public static class FirebirdDialect
     {
-        public static IOrmLiteDialectProvider Provider { get { return FirebirdOrmLiteDialectProvider.Instance; } }
+        public static IOrmLiteDialectProvider Provider => FirebirdOrmLiteDialectProvider.Instance;
     }
 }

src/ServiceStack.OrmLite.MySql/MySqlDialect.cs

@@ -4,6 +4,6 @@ namespace ServiceStack.OrmLite
 {
     public static class MySqlDialect
     {
-        public static IOrmLiteDialectProvider Provider { get { return MySqlDialectProvider.Instance; } }
+        public static IOrmLiteDialectProvider Provider => MySqlDialectProvider.Instance;
     }
 }

src/ServiceStack.OrmLite.Oracle/OracleDialect.cs

@@ -2,6 +2,6 @@
 {
     public class OracleDialect
     {
-        public static IOrmLiteDialectProvider Provider { get { return OracleOrmLiteDialectProvider.Instance; } }
+        public static IOrmLiteDialectProvider Provider => OracleOrmLiteDialectProvider.Instance;
     }
 }

src/ServiceStack.OrmLite.PostgreSQL/PostgreSqlDialect.cs

@@ -4,6 +4,6 @@ namespace ServiceStack.OrmLite
 {
     public static class PostgreSqlDialect
     {
-        public static IOrmLiteDialectProvider Provider { get { return PostgreSqlDialectProvider.Instance; } }
+        public static IOrmLiteDialectProvider Provider => PostgreSqlDialectProvider.Instance;
     }
 }

src/ServiceStack.OrmLite.SqlServer/SqlServerDialect.cs

@@ -4,11 +4,11 @@ namespace ServiceStack.OrmLite
 {
     public static class SqlServerDialect
     {
-        public static IOrmLiteDialectProvider Provider { get { return SqlServerOrmLiteDialectProvider.Instance; } }
+        public static IOrmLiteDialectProvider Provider => SqlServerOrmLiteDialectProvider.Instance;
     }
 
     public static class SqlServer2012Dialect
     {
-        public static IOrmLiteDialectProvider Provider { get { return SqlServer2012OrmLiteDialectProvider.Instance; } }
+        public static IOrmLiteDialectProvider Provider => SqlServer2012OrmLiteDialectProvider.Instance;
     }
 }

src/ServiceStack.OrmLite.Sqlite.Windows/SqliteDialect.cs

@@ -4,6 +4,6 @@ namespace ServiceStack.OrmLite
 {
     public static class SqliteDialect
     {
-        public static IOrmLiteDialectProvider Provider { get { return SqliteOrmLiteDialectProvider.Instance; } }
+        public static IOrmLiteDialectProvider Provider => SqliteOrmLiteDialectProvider.Instance;
     }
 }

src/ServiceStack.OrmLite.Sqlite/SqliteDialect.cs

@@ -4,6 +4,6 @@ namespace ServiceStack.OrmLite
 {
     public static class SqliteDialect
     {
-        public static IOrmLiteDialectProvider Provider { get { return SqliteOrmLiteDialectProvider.Instance; } }
+        public static IOrmLiteDialectProvider Provider => SqliteOrmLiteDialectProvider.Instance;
     }
 }

src/ServiceStack.OrmLite.VistaDB/VistaDbDialect.cs

@@ -4,6 +4,6 @@ namespace ServiceStack.OrmLite
 {
     public static class VistaDbDialect
     {
-        public static VistaDbDialectProvider Provider { get { return VistaDbDialectProvider.Instance; } }
+        public static VistaDbDialectProvider Provider => VistaDbDialectProvider.Instance;
     }
 }