Switch build system from cmake to GNU configure
There are 2 benefits:
- Reduced number of build dependencies (0 now)
- This fixes build on arm64, as configure/Makefile are more updated than CMakeLists.txt (CMakeLists.txt doesn't know about the arm/arm_init.c and arm/filter_neon_intrinsics.c files)
PR: 201425
Tested by: Andrew Turner (on arm64)