investigate removing dependency to lodash

[bd82]

lodash is a great library. however, it seems it will be much easier to consume Chevrotain
if it had no dependencies (In browsers/bower).

The hotspots in the code are already written in an imperative style for performance reasons.
So need to find how much functionality from lodash is really needed and what is the cost to replace it.

[bd82]

there are 30+ functions used from lodash in the 'production' code.
this may be a bit too much to replace manually.

perhaps another chevrotain build artifact with a minimal custom lodash build will solve the problem?

[bd82]

Closing this issue for now.

may revisit it in the future.

[bd82]

Revisiting, no dependencies will also make it easier to use as parts of other libraries.
maybe just refactor +re-implement the logic needed from lodash in a very 'naive' manner.
as it the performance does not really matter in 'none hotspots'.