Level 2 BLAS-like matrix-vector ops

Modules
	ilalc: find non-zero col
	ilalr: find non-zero row
	lascl: scale matrix
	la_geamv: matrix-vector multiply |A| |x|, general
	la_gbamv: matrix-vector multiply |A| |x|, general banded
	la_heamv: matrix-vector multiply |A| |x|, Hermitian/symmetric
	lascl2: diagonal scale matrix, A = D A
	larscl2: reciprocal diagonal scale matrix, A = D^{-1} A
	la_wwaddw: add to double-double or single-single vector

Detailed Description

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