initial version of sgrep for homework in C++ course
BEWARE: not working state; division in src and include performed
Makefile revised
soirce files updated
files put into a compilable state
updated
support for alternative groups added
merge with initial github
first step towards implementing proper testing
AltStack moved to a separate file
const functions explicitly marked as const
declaration of AltStack added
declaration of copy_edges and push_edge(edge_v_t *) added; edge_v_t made vector of const Edge *