Style: Enforce braces around if blocks and loops

Using clang-tidy's `readability-braces-around-statements`.
https://clang.llvm.org/extra/clang-tidy/checks/readability-braces-around-statements.html

modules/basis_universal/register_types.cpp

@@ -240,8 +240,9 @@ static Ref<Image> basis_universal_unpacker(const Vector<uint8_t> &p_buffer) {
 	{
 		uint8_t *w = gpudata.ptrw();
 		uint8_t *dst = w;
-		for (int i = 0; i < gpudata.size(); i++)
+		for (int i = 0; i < gpudata.size(); i++) {
 			dst[i] = 0x00;
+		}
 
 		int ofs = 0;
 		tr.start_transcoding(ptr, size);