Improves code coverage for BsHelper
Add html5 function to coverage
Coverage BsHelper 100%

- Add good link for bs_addon.css and css/js of date picker

I expect a 100% code coverage for the BsHelper
Modify BsForm

- Test and Helper to have 100% coverage on the input function
Correct some test and add test for date picker
Add new tests

- Inputgroup function
- Better coverage for datepicker function
Improve code coverage for input group and date picker
Correct one line for phpcs
Merge pull request #14 from WebAndCow/coverage

Improve general code coverage and add some files