Added support to HTTPS URLs and for special characters in the username or password

[tchellomello]

This PR added support to HTTPS URLs and also support special characters in the user's password such as '#' or '!'

Here below an example of using HTTPS and encoding a password

In [1]: from SynologyDSM import SynologyDSM

In [2]: api5 = SynologyDSM('192.168.0.1', 5001, 'admin', 'secret#qq', debugmode=True, use_https=True)

In [3]: api5.storage.volumes
DEBUG: Creating New Session
DEBUG: Requesting URL: 'https://192.168.0.1:5001/webapi/auth.cgi?api=SYNO.API.Auth&version=2&method=login&account=admin&passwd=secret#%23qq&session=Core&format=cookie'
DEBUG: Request executed: 200
DEBUG: Succesfull returning data
DEBUG: {'data': {'sid': 'jCXsRpHIK9999999'}, 'success': True}
DEBUG: Authentication Succesfull, token: jCXsRpHIK9999999
DEBUG: Requesting URL: 'https://192.168.0.1:5001/webapi/entry.cgi?api=SYNO.Storage.CGI.Storage&version=1&method=load_info'
DEBUG: Appending access_token (SID: jCXsRpHIK9999999) to url
DEBUG: Request executed: 200
DEBUG: Succesfull returning data
DEBUG: {'data': {'disks': [{'adv_progress': '', 'adv_status': 'not_support',  [.... SNIP...]  'success': True}
Out[4]: ['volume_1']

See also:

• Added support to HTTPS URLs on SynologyDSM home-assistant/core#15270
• SynologyDSM does not work when using HTTPS or when the user's password has a special character home-assistant/core#15269

[tchellomello]

@StaticCube I've already created a PR home-assistant/core#15270 waiting for this fix. Please let me know your thoughts 👍

[ProtoThis]

Looks really cool will do a checkout and let you know,

[tchellomello]

Thanks @StaticCube !