added SCRAPYD_SERVER HTTPS support

[ritikkumarsahu]

Currently Scrapydweb doesn't support Scrapyd Server hosted remotely with HTTPS. I have Added the support for https.

SCRAPYD_SERVERS = [
('', '', 'https', example.com', '443', '')
]

[pep8speaks]

Hello @ritikkumarsahu! Thanks for opening this PR. We checked the lines you've touched for PEP 8 issues, and found:

• In the file scrapydweb/utils/check_app_config.py:

Line 393:121: E501 line too long (121 > 120 characters)

• In the file scrapydweb/utils/poll.py:

Line 183:121: E501 line too long (169 > 120 characters)

• In the file scrapydweb/views/api.py:

Line 20:121: E501 line too long (127 > 120 characters)

• In the file scrapydweb/views/files/log.py:

Line 56:121: E501 line too long (138 > 120 characters)
Line 69:121: E501 line too long (138 > 120 characters)

• In the file scrapydweb/views/operations/deploy.py:

Line 287:121: E501 line too long (175 > 120 characters)

• In the file scrapydweb/views/operations/schedule.py:

Line 368:121: E501 line too long (167 > 120 characters)