TVEC.sim: correct printing of show.parMat
man: update for roxygen2, 4
TVECM.sim: add arg seed, update man file
test VAR: update all.equal for locale
TVECM: return r (=1) and LRinclude (=none) to be consistent with VECM
test TVECM.sim: small changes
tests TVECM.sim: add a few more checks
TVEC.sim: allow r>1, many input ways for beta, simpler way to form the 'insert' values, etc
VECM.sim: add, export, update man page, add more tests