This adds an RzBuffer implementation that binds against RzIO's
rz_io_read_at/rz_io_write_at in order to access the mapped memory. This
is in contrast to the previous io RzBuffer, which has been renamed to
..._io_fd and which reads directly from a single file descriptor without
mapping.
To keep bf working, bin_bf now maps an area of zeroes because
otherwise the initial memory contents in RzIL would read as 0xff.
* Cleanup RzAnalysisRzil when freeing RzAnalysis
* Fix str leaking in rz_core_write_string_at
* Fix buf leaking in rz_core_yank_paste
* Fix memleak in json unit tests
* Fix features leaking in RzBinInfo
* Fix features leaking in RzAsm
* Fix memleaks in RzTable
* Fix test_str_search memleaks
* Fix memleak in test_io.c
* Fix memleaks in RzBuf and test_buf.c
* Fix memleaks in test_cmd.c
* Fix memleaks in test_config.c
* Fix memleaks in RzCons
* Fix hashes leaking in test_bin.c
* Fix memleaks in test_id_storage.c
* Fix memleaks in test_il*.c and adjust APIs
* Disable colors on Windows because terminal looks bad otherwise
* Use environment on Windows to set PATH and make sure unit tests use
the compiled libraries and not the installed ones
* Define ssize_t on Windows as well by using SSIZE_T
Update test_analysis_block.c
Update test_intervaltree.c
Update test_unum.c
* Kill some more tests using <<RUN
* Improve r2r.v quite a lot up to 0.2
* Delete stale temporal files in the unit test
* Use executable path instead of dbpath and more cleanup
* Move manpage and move old bins into the attic
