static stack alloc with a cutoff (32), less dynamic allocations

[Reini Urban]

I've put them into static globals, but this is not thread-safe. Rather put them into the search function.

• askip.c
• akc.c
• ww.c
• fdm.c
• aut.c
• blim.c
• bndml.c
• bom.c (static cells)
• simon.c (static cells)
• bom2.c
• dfdm.c
• ebom.c
• epsm.c (too hard)
• fbom.c
• graspm.c (WIP, static linked list)
• ildm1.c
• ildm2.c
• include/AUTOMATON.h
• include/GRAPH.h
• ldm.c
• rf.c
• sebom.c
• sfbom.c
• skip.c (static list)
• skip2.c
• skip3.c
• skip4.c
• skip5.c
• skip6.c
• skip7.c
• skip8.c
• ssef.c (linked list)
• trf.c