alr init: add compiler option controls to template project (#523)

alr init: add compiler option controls to template project (#523)

* alr init: add compiler option controls to template project

User can control compile checks, run-time checks, contracts, style
checks.

* Testsuite: fix Ada coding style in tests

* Alr.Commands.Init: use UNIX line ending on all generated source code

To pass default GNAT style checks.

* Update alr-commands-init.adb

Alr.Commands.Init: fix line ending by using file IO binary mode

* Alr.Commands.Init: rever line ending changes and just remove the check

Git is messing with line ending on Windows so trying to produce UNIX files is more difficult than planned.

Instead the DOS line terminator style check is disabled.