Include tensor simulability in the bloq report card

[mpharrigan]

Provide functionality for determining whether a bloq can be tensor-simulated in theory and in practice.

• Add a function that takes any bloq (or BloqExample), decomposes it as much as possible (Changes to .flatten #1061), turns it into a tensor network (need to fix Quimb tensor contraction is significantly slower than cirqs state vector simulation #793 -- splits and joins). If this is possible, it is contractible in theory (would catch issues like AddConstantMod --> ModAddK doesn't support simulation anymore  #1046 )
• use quimb to find statistics (mem and flops) for a tensor contraction. Will report whether it is contractible in practice