Add clang-tidy performance-* checks

.clang-tidy

@@ -3,6 +3,7 @@ Checks: >
   clang-analyzer-*,
   misc-*,
   modernize-*,
+  performance-*,
   portability-*,
   readability-*,
   -clang-analyzer-nullability.NullablePassedToNonnull,
@@ -20,6 +21,8 @@ Checks: >
   -modernize-return-braced-init-list,
   -modernize-use-nodiscard,
   -modernize-use-trailing-return-type,
+  -performance-inefficient-string-concatenation,
+  -performance-no-int-to-ptr,
   -readability-braces-around-statements,
   -readability-container-contains,
   -readability-convert-member-functions-to-static,

test/Graphics/Texture.test.cpp

@@ -61,7 +61,7 @@ TEST_CASE("[Graphics] sf::Texture" * doctest::skip(skipDisplayTests))
 
         SUBCASE("Construction")
         {
-            const sf::Texture textureCopy(texture);
+            const sf::Texture textureCopy(texture); // NOLINT(performance-unnecessary-copy-initialization)
             REQUIRE(textureCopy.getSize() == sf::Vector2u(1, 2));
             CHECK(textureCopy.copyToImage().getPixel(sf::Vector2u(0, 1)) == sf::Color::Red);
         }

test/Graphics/VertexBuffer.test.cpp

@@ -69,7 +69,7 @@ TEST_CASE("[Graphics] sf::VertexBuffer" * doctest::skip(true))
 
         SUBCASE("Construction")
         {
-            const sf::VertexBuffer vertexBufferCopy(vertexBuffer);
+            const sf::VertexBuffer vertexBufferCopy(vertexBuffer); // NOLINT(performance-unnecessary-copy-initialization)
             CHECK(vertexBufferCopy.getVertexCount() == 0);
             CHECK(vertexBufferCopy.getNativeHandle() == 0);
             CHECK(vertexBufferCopy.getPrimitiveType() == sf::PrimitiveType::LineStrip);