Merge branch 'bind-pattern-notation' into 'master'

Fix #70: add pattern variant of bind notation

Closes #70

See merge request !169
5 jobs for master in 14 minutes and 52 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Build
passed #79799
fp
build-coq.8.10.2

00:04:49

passed #79798
fp-timing
build-coq.8.11.2

00:04:07

passed #79797
fp
build-coq.8.12.dev

00:10:45

passed #79801
fp
build-coq.8.8.2

00:03:37

passed #79800
fp
build-coq.8.9.1

00:04:34