modify  core/file/Makefile and bugs of fib_rec
pass fib_rec.s
fix bug about BFLE
increase instruction memory
Merge remote-tracking branch 'origin/developer' into emak
pass mandelbrot.ml
pass newton but not mandelbrot
pass mandelbrot (not checked newton)
modify core/file/Makefile
add controll.vhd and modify registers
Merge branch 'emak' of https://github.com/hrontan/CoreWe3 into emak
Merge remote-tracking branch 'origin/developer' into emak
modify alu and register
modify memory_io and pass memory function
modify memory_io and run normally
pass fib_rec.s
Merge remote-tracking branch 'origin/developer' into pipeline
modify memory_io.vhd and fix some bugs
modify memory_io.vhd
pass fib fib_rec loopback stack_test