feat: Implements object meta properties for CopyObject in azure and posix backends.

Fixes #998
Closes #1125
Closes #1126
Closes #1127

Implements objects meta properties(Content-Disposition, Content-Language, Content-Encoding, Cache-Control, Expires) and tagging besed on the directives(metadata, tagging) in CopyObject in posix and azure backends. The properties/tagging should be coppied from the source object if "COPY" directive is provided and it should be replaced otherwise.

Changes the object copy principle in azure: instead of using the `CopyFromURL` method from azure sdk, it first loads the object then creates one, to be able to compare and store the meta properties.

s3api/controllers/base_test.go

@@ -975,7 +975,7 @@ func TestS3ApiController_PutActions(t *testing.T) {
 			PutObjectAclFunc: func(context.Context, *s3.PutObjectAclInput) error {
 				return nil
 			},
-			CopyObjectFunc: func(context.Context, *s3.CopyObjectInput) (*s3.CopyObjectOutput, error) {
+			CopyObjectFunc: func(context.Context, s3response.CopyObjectInput) (*s3.CopyObjectOutput, error) {
 				return &s3.CopyObjectOutput{
 					CopyObjectResult: &types.CopyObjectResult{},
 				}, nil