Add share note with other apps function

[diegoalvis]

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[diegoalvis]

@khuttun is possible that you must upgrade your gradle plugin version, but if you have troubles let me know. Have a nice day!

[khuttun]

Hi @diegoalvis. Thanks for the pull request! The code looks good. Some comments:

• Could you leave the changes outside app/src out from the commit? They are not directly related to adding the share functionality.

• Now that I look at the implementation, I started to think that should the share button actually rather be in the Edit note view next to the SAVE button? The notes list looks a bit busy now with the share buttons, and the button actually might go on top of the note text.

[diegoalvis]

Ok man, @khuttun