IcsConverter project initial commit.

- creates ICS files
- adapter for Calendar++ model to ICS model

TODO:
- uses stub implementation for Events
- bug - doesn't set start/end date so that Google Calendar understands them...
- uses maven (to be changed later on)
Signed-off-by:leni-kirilov <leni.kirilov@gmail.com>
test delete file
Signed-off-by:leni-kirilov <leni.kirilov@gmail.com>