Added the rest of the blocks for now - S2b and S2c. Both for large and small grids.

Added Oxygen and Hydrogen tanks of size XS, type 2 for large and small grids.

Fix for a small mistake that I missed.

New blocks added:
... XS1
... S1b
... S1c
... S2a
For both Oxygen and Hydrogen tanks as well as Large and Small grids.

Update:
First part of the new blocks.
... S1a
For both Oxygen and Hydrogen tanks as well as Large and Small grids.

Updated the capacity of the small grid tanks to be better balanced for small ships.

Added storage space.

First upload.