Refact: Store version in VERSION file meta#81

VERSION

+1.0.0-alpha1-dev
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meta.py

-# Meta
-__author__ = "David Trattnig and Gottfried Gaisbauer"
-__copyright__ = "Copyright 2017-2020, Aura Engine Team"
-__credits__ = ["Steffen Müller", "Michael Liebler"]
-__license__ = "GNU Affero General Public License (AGPL) Version 3"
-__version__ = "0.9.9"
-__version_info__ = (0, 9, 9)
-__maintainer__ = "David Trattnig"
-__email__ = "david.trattnig@subsquare.at"
-__status__ = "Development"
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