buildsystem: Added debug build flags to linker

buildscripts/tests.lua

@@ -40,7 +40,8 @@ local library_linker_inputs = '-l' .. table.concat({
 	-- Linux
 }, ' -l')
 local linker_flags = table.concat({
-
+	"-g",
+	"-O0"
 }, ' ')
 local shader_src_dir = "bin/shaders/src"
 local shader_out_dir = "bin/shaders/out"