Minor fixes addressing PR comments for SAP HANA support

- Replace explicit check for AbstractHanaDialect with
  TestDialect.SupportsEmptyInserts where applicable
- Replace copied base class documentation with <inheritdoc />
- Add constructor SQLFunctionTemplateWithRequiredParameters(IType, string, object[], bool)
- Improve documentation of SQLFunctionTemplateWithRequiredParameters
- Removed deprecation comments from Dialect#AddColumnString and
  Dialect#AddColumnSuffixString

Author: breglerj

src/NHibernate.Test/Async/Criteria/Lambda/FunctionsIntegrationFixture.cs

@@ -22,7 +22,7 @@ public class FunctionsIntegrationFixtureAsync : TestCase
 	{
 		protected override bool AppliesTo(Dialect.Dialect dialect)
 		{
-			return !(dialect is AbstractHanaDialect); // HANA does not support inserting a row without specifying any column values
+			return TestDialect.SupportsEmptyInserts;
 		}
 
 		protected override string MappingsAssembly => "NHibernate.Test";

src/NHibernate.Test/Async/Criteria/Lambda/IntegrationFixture.cs

@@ -27,7 +27,7 @@ public class IntegrationFixtureAsync : TestCase
 	{
 		protected override bool AppliesTo(Dialect.Dialect dialect)
 		{
-			return !(dialect is AbstractHanaDialect); // HANA does not support inserting a row without specifying any column values
+			return TestDialect.SupportsEmptyInserts;
 		}
 
 		protected override string MappingsAssembly { get { return "NHibernate.Test"; } }

src/NHibernate.Test/Async/Criteria/Lambda/ProjectIntegrationFixture.cs

@@ -23,7 +23,7 @@ public class ProjectIntegrationFixtureAsync : TestCase
 	{
 		protected override bool AppliesTo(Dialect.Dialect dialect)
 		{
-			return !(dialect is AbstractHanaDialect); // HANA does not support inserting a row without specifying any column values
+			return TestDialect.SupportsEmptyInserts;
 		}
 
 		protected override string MappingsAssembly

src/NHibernate.Test/Async/Criteria/Lambda/SimpleIntegrationFixture.cs

@@ -20,7 +20,7 @@ public class SimpleIntegrationFixtureAsync : TestCase
 	{
 		protected override bool AppliesTo(Dialect.Dialect dialect)
 		{
-			return !(dialect is AbstractHanaDialect); // HANA does not support inserting a row without specifying any column values
+			return TestDialect.SupportsEmptyInserts;
 		}
 
 		protected override string MappingsAssembly

src/NHibernate.Test/Async/Criteria/Lambda/SubQueryIntegrationFixture.cs

@@ -22,7 +22,7 @@ public class SubQueryIntegrationFixtureAsync : TestCase
 	{
 		protected override bool AppliesTo(Dialect.Dialect dialect)
 		{
-			return !(dialect is AbstractHanaDialect); // HANA does not support inserting a row without specifying any column values
+			return TestDialect.SupportsEmptyInserts;
 		}
 
 		protected override string MappingsAssembly

src/NHibernate.Test/Async/Events/Collections/AbstractCollectionEventFixture.cs

@@ -26,7 +26,7 @@ public abstract class AbstractCollectionEventFixtureAsync : TestCase
 	{
 		protected override bool AppliesTo(Dialect.Dialect dialect)
 		{
-			return !(dialect is AbstractHanaDialect); // HANA does not support inserting a row without specifying any column values
+			return TestDialect.SupportsEmptyInserts;
 		}
 
 		protected override string MappingsAssembly

src/NHibernate.Test/Async/GenericTest/Overall/Fixture.cs

@@ -22,7 +22,7 @@ public class FixtureAsync : TestCase
 	{
 		protected override bool AppliesTo(Dialect.Dialect dialect)
 		{
-			return !(dialect is AbstractHanaDialect); // HANA does not support inserting a row without specifying any column values
+			return TestDialect.SupportsEmptyInserts;
 		}
 
 		protected override IList Mappings

src/NHibernate.Test/Async/Legacy/FooBarTest.cs

@@ -44,7 +44,7 @@ private static byte[] GetBytes(string str)
 
 		protected override bool AppliesTo(Dialect.Dialect dialect)
 		{
-			return !(dialect is AbstractHanaDialect); // HANA does not support inserting a row without specifying any column values
+			return TestDialect.SupportsEmptyInserts;
 		}
 
 		protected override IList Mappings

src/NHibernate.Test/Async/Legacy/FumTest.cs

@@ -32,7 +32,7 @@ public class FumTestAsync : TestCase
 
 		protected override bool AppliesTo(Dialect.Dialect dialect)
 		{
-			return !(dialect is AbstractHanaDialect); // HANA does not support inserting a row without specifying any column values
+			return TestDialect.SupportsEmptyInserts;
 		}
 
 		protected override IList Mappings

src/NHibernate.Test/Async/Legacy/MasterDetailTest.cs

@@ -32,7 +32,7 @@ public class MasterDetailTestAsync : TestCase
 	{
 		protected override bool AppliesTo(Dialect.Dialect dialect)
 		{
-			return !(dialect is AbstractHanaDialect); // HANA does not support inserting a row without specifying any column values
+			return TestDialect.SupportsEmptyInserts;
 		}
 
 		protected override IList Mappings