(build) allow version string to use lw-tags

It seems like 0.5.2 got tagged as a lightweight tag and not an annotated
tag. While not a big issue in itself, it also caused the --describe to
point to the wrong version when generating the versioned tag. This is
worse since it is used in crash dumps and so on to know what kind of a
build we are dealing with. Instead of messing with the tags further,
the build system is changed to accept lightweight tags in describe.

FossilOrigin-Name: 1fbda848689db387d8cd6fdde0c2b101aee21b02391185535951028db34b2056

src/CMakeLists.txt

@@ -65,7 +65,7 @@ endif()
 if (NOT DEFINED ENGINE_BUILDTAG)
 	find_package(Git)
 	if (GIT_FOUND)
-		execute_process(COMMAND ${GIT_EXECUTABLE} describe --always
+		execute_process(COMMAND ${GIT_EXECUTABLE} describe --always --tags
 			WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
 			RESULT_VARIABLE EXIT_CODE
 			OUTPUT_VARIABLE GIT_VERSION