Merge pull request #23109 from seanm:misc-warnings

* Fixed clang -Wnewline-eof warnings
* Fixed all trivial clang -Wextra-semi and -Wc++98-compat-extra-semi warnings
* Removed trailing semi from various macros
* Fixed various -Wunused-macros warnings
* Fixed some trivial -Wdocumentation warnings
* Fixed some -Wdocumentation-deprecated-sync warnings
* Fixed incorrect indentation
* Suppressed some clang warnings in 3rd party code
* Fixed QRCodeEncoder::Params documentation.

---------

Co-authored-by: Alexander Smorkalov <alexander.smorkalov@xperience.ai>

modules/gapi/test/cpu/gapi_ocv_stateful_kernel_tests.cpp

@@ -165,7 +165,7 @@ namespace
             out = true;
         }
     };
-};
+}
 
 TEST(StatefulKernel, StateInitOnceInRegularMode)
 {
@@ -190,7 +190,7 @@ TEST(StatefulKernel, StateInitOnceInRegularMode)
         EXPECT_TRUE(params.pSetupsCount != nullptr);
         EXPECT_EQ(1, *params.pSetupsCount);
     }
-};
+}
 
 struct StateInitOnce : public ::testing::TestWithParam<bool>{};
 TEST_P(StateInitOnce, StreamingCompiledWithMeta)