Refactor Sample Verifier tests

Author: NeonGraal

Diff for: test/GqlPlus.Verifier.ComponentTests/Sample/OperationVerifierTests.cs renamed to test/GqlPlus.Verifier.ComponentTests/Operation/OperationSampleVerifierTests.cs

@@ -5,9 +5,9 @@
 using GqlPlus.Token;
 using GqlPlus.Verifying;
 
-namespace GqlPlus.Sample;
+namespace GqlPlus.Operation;
 
-public class OperationVerifierTests(
+public class OperationSampleVerifierTests(
     Parser<IGqlpOperation>.D operationParser,
     IVerify<IGqlpOperation> operationVerifier
 ) : SampleChecks

Diff for: test/GqlPlus.Verifier.ComponentTests/Sample/SchemaVerifierTests.cs renamed to test/GqlPlus.Verifier.ComponentTests/Schema/SchemaSampleVerifierTests.cs

@@ -5,9 +5,9 @@
 using GqlPlus.Token;
 using GqlPlus.Verifying;
 
-namespace GqlPlus.Sample;
+namespace GqlPlus.Schema;
 
-public class SchemaVerifierTests(
+public class SchemaSampleVerifierTests(
     Parser<IGqlpSchema>.D schemaParser,
     IVerify<IGqlpSchema> schemaVerifier
 ) : SchemaDataBase(schemaParser)