Add a directive for toggling SSL verification

[sharat87]

Currently, SSL verification can be toggled using the RoastSSLVerify or RoastSSLIgnore commands. We should create a use directive that toggles SSL verification at a more granular level within a roast file.

[nx-s]

Hi sharat87,

i just recently stumbled upon roast.vim. I like it, thanks!
The RoastSSLIgnore command, however, seems not to work for me. I always get the error:

HTTPSConnectionPool(host='localhost', port=52323): Max retries exceeded with url: /info (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')])")))