Don't fail if installed from build without tools

cmake/Config.cmake.in

@@ -13,7 +13,7 @@ if(@CMAKE_CROSSCOMPILING@)
 	macro(_bgfx_crosscompile_use_host_tool TOOL_NAME)
 		if(NOT TARGET bgfx::${TOOL_NAME})
 			find_program(
-				${TOOL_NAME}_EXECUTABLE REQUIRED
+				${TOOL_NAME}_EXECUTABLE
 				NAMES bgfx-${TOOL_NAME} ${TOOL_NAME}
 				PATHS /usr/bin #
 					  ${CMAKE_CURRENT_SOURCE_DIR}/vcpkg/packages/bgfx_x64-linux/tools/bgfx

cmake/bgfx/CMakeLists.txt

@@ -12,9 +12,6 @@ include(bgfx.cmake)
 include(3rdparty/meshoptimizer.cmake)
 include(3rdparty/dear-imgui.cmake)
 
-include(shared.cmake)
-include(examples.cmake)
-
 if(BGFX_BUILD_TOOLS_TEXTURE)
 	include(texturev.cmake)
 endif()
@@ -31,3 +28,6 @@ if(BGFX_BUILD_TOOLS_SHADER)
 	include(3rdparty/webgpu.cmake)
 	include(shaderc.cmake)
 endif()
+
+include(shared.cmake)
+include(examples.cmake)