EC2 Parts rendering consistent to AE2

[dipo33]

This PR changes few EC2 parts rendering, to be consistent with AE2.

Example:
Fluid Storage Bus (before):

Fluid Storage Bus (after):

Fluid Terminal (before):

Fluid Terminal (after):

AE2 Storage Bus (for comparison):

I've also changed something else, but not everything, since most of the stuff are already being replaced by AE2FC version. Probably the only parts from EC2 being still used are the terminal and storage bus.