Add metadata for DOS plots.
Add metadata for DOS plots.

Add metadata for DOS plots by adding processors 'Energy Text' and 'DOS Text'.

rartino/ENVISIoN,rartino/ENVISIoN,rartino/ENVISIoN,rartino/ENVISIoN,rartino/ENVISIoN,rartino/ENVISIoN