Add sanitising of quotes in URLs(and paths)

[shreys7]

Fixes postmanlabs/postman-app-support#8674
Single/double quotes were not handled correctly in some of the languages.

Languages affected:

• cURL
• Java Unirest
• NodeJS Native (path)
• Python http.client
• Swift

[abhijitkane]

@shreys7 were the sanitize functions already written? Also, what would be the correct curl command for curl http://httpbin.org/get?a=a"b'c?

[shreys7]

@shreys7 were the sanitize functions already written? Also, what would be the correct curl command for curl http://httpbin.org/get?a=a"b'c?

So, we already had sanitize functions, which basically takes care of escaping a single quote inside a single quote, and the same for double quotes. The sanitization part was present in headers, bodies, etc. But some languages did not have sanitisation of URLs.
for curl http://httpbin.orf/get?a=a"b'c => we put the URL in quotes, and after proper escaping cURL command would look like curl 'http://httpbin.org/get?a=a"b'\''c'

Note: to escape a single quote within a single quote we need to replace a single quote with '\'' for cURL(shell)