This does not mean that the configuration file will permanently stay on this folder/subfolder
structure.

It's just a way of letting things more easy to test and reproduce for now.

Substitution file is used in module build to set channel names, since that shouldn't change
too much with time and particular detector.

VMM and Hybrid numbers are left to be changed in the st.cmd file since that can change more often.

Now, for VMM, the pattern is:
$(R)$(H)$(V)$(C)$(CH)

R: Usually "NDet-VMMHYB-00". No colon after.
H: Hybrid number in range 0-5
V: VMM chip number in range 0-1
C: Colon Between device name and property Should be ":" but is a macro in case anyone
   decides that shouldn't be there anymore.
CH: Channel/register being set. Can be ST, SL, SC, STH, SM or SMX

Also, to make naming more visible and dynamic, stop using substitutions file.

Until now, records were only being loaded by local changes in st.cmd file.
This commit adds channels.substitutions and channels.template to makefile,
and loads its expansion in the st.cmd.

In this moment we are using only hybrid 0, this must be changed in the future