Add function

Error naming
pie_cCSRGenMatrAddValue -> pie_cCSRGenMatrSetValue

Functions:
pie_cVec.h
	+ pie_cVecScal
Add functions & refactoring

Split functions for CSRSepMatr for different types (real and complex) in different files

Functions:
pie_cVec.h
	+ pie_cVecScal

pie_dCSRSepMatr.h
	+ pie_dCSRSepMatrixSetValue
	+ pie_dCSRSepMatrixMvpy

pie_cCSRSepMatr.h
	+ pie_cCSRSepMatrixSetValue
	+ pie_cCSRSepMatrixMvpy