Inline Unicode-7.0.0 regexes

[mourner]

@IvanSanchez Currently the unicode-7.0.0 dependency, which is required by the lines below, takes 124MB in Leaflet node_modules folder. To make Leafdoc leaner, I suggest either inlining those two regexps and removing the dependency (which should take just a dozen kilobytes), or doing Rollup magic and thus moving unicode-7.0.0 to devDependencies.

Leafdoc/src/regexps.js

Lines 42 to 43 in 6b7d38a

	ID_Start: require('unicode-7.0.0/properties/ID_Start/regex'),
	ID_Continue: require('unicode-7.0.0/properties/ID_Continue/regex')

[mourner]

Looks like this was already addressed with regenerate-unicode-properties in 2.0.0.