Changelog for clifford-

--change-log-- Added pendulum example Adding ability to create linear operators from matrices; made linear operators a category and monoid Adding type signatures to top level stuff More inlining and specialisation Fixed compile error whoops Inlined/specialised a bunch of function, hueg speed increase Implemented algebraic/transcendental typeclasses Adding basic linear operators; made multivector a field Memoising the blade index comparision function for a 20% speed increase Adding hspec tests, fixed blade comparison to order blades in terms of grade first Made multivectors have a (p,q) metric signature at the type level