Fix #76: Add install config to cmake (#77)

* Add install config to cmake

* Fix install

* Update README.

* Fix readme

Co-authored-by: Bowen Fu <missing>

Update README.

single header. (#72)

Co-authored-by: Bowen Fu <missing>

Fix #68 : Store value instead of ref in PatternPair. (#70)

* Fix #68

* Accept function type

Co-authored-by: Bowen Fu <missing>

Add D to B cast. (#66)

* Add D to B cast.

* parallel 4.

Co-authored-by: Bowen Fu <missing>

formatting. (#55)