add rough support for star_info unknown_by_simbad

jmdc-ui/jmdc_app/alembic/versions/20200117_e891b3cc374d.py

+"""add star_info.not_known_by_simbad
+
+Revision ID: e891b3cc374d
+Revises: 0197b06cd69d
+Create Date: 2020-01-17 12:25:22.100925
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'e891b3cc374d'
+down_revision = '0197b06cd69d'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('star_info', sa.Column('unknown_by_simbad', sa.Boolean(), nullable=True))
+    # ### end Alembic commands ###
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('star_info', 'unknown_by_simbad')
+
+    # ### end Alembic commands ###