v0.7.63

ApproxFunBase v0.7.63

Diff since v0.7.62

Merged pull requests:

• Update PartialInverseOperator docstring (#353) (@jishnub)
• Fix indexing for tensorizers (#354) (@jishnub)
• Binary search in block for nD TrivialTensorizer (#355) (@jishnub)
• use Base.splat in Fun constructor again (#356) (@jishnub)
• Add tests for TrivialTensorizer blocks (#357) (@jishnub)
• improve inference in tensorizer length (#358) (@jishnub)