add: all sources from RCF-2.0.0.2678

- remove executable attributes
- convert all text files using `dos2unix`
copy JSON Spirit v4.05 into the local source tree
modify the sources to remove all compilation errors

- swap the order of header files inclusion
- add FQ namespace to remove errors
- create Makefile (very poor quality)
Merge remote-tracking branch 'refs/remotes/origin/master'
update README.md