a half-baked "virtual" keyboard for Hebrew (think Lambdin)
Bemigot picked up this work and continues as esh-heb
JS skeleton modeled after Pāli keyboard as published by @siongui
TODO:
- add space key
- replace Holam after Vav with Holam Haser for Vav - defer until save/search
- on input force canonic order for accent mark, vowel sign and dagesh