feat(wp): Webpack build for sls [prototype]

[NamelsKing]

Background

Aws lambdas are limited with 50 mb of gzim and 200 mb of unpacked size. We are nearly close to this numbers.
Webpack is one of the solutions, as it's allow us to to avoid node_modules coping, and packing only libs that needed by app.
Here is the proto #1043

unsolved problems:

• Build lasts 2-3 min even for development, coz we recompile all node_modules
• Exclude node_modules from sls package, we dont need them anymore
• a lot of warnings, that should be fixed, some of them not minor