CB-7094 Ported File manual tests

Only contains file manual tests for android and iOS.
Both tested and validated.
All outputs and results to log content.

createActionButton it depends of this PR:
https://github.com/apache/cordova-plugin-test-framework/pull/1
Style improvements on Manual tests

Usage of info, which is wired a css class, aimed to only show results.
Reorganization of titles and tables.
Just organization of labes, and html elements.
Removed comment from automated tests.
CB-6923 Adding support to handle relative paths

Added support to resolve relative paths.
When the path received is relative, it will combine and obtain a full
path before it becomes proceced by IsolatedStorageFile and determine if
exists.

Two private methods were added to handle this, it won't affect the
regular workflow if the path is absolute and it will combine it as
usual.
CB-7094 renamed folder to tests + added nested plugin.xml
Removed test/tests.js module from main plugin.xml
fix merge conflict
Fixes multiple mobilespec tests errors
Adds Windows platform
This closes #56
Merge branch 'CB-6923' of https://github.com/martincgg/cordova-plugin-file