fix(chore): address build issue

[kuzhelov]

Problem

This PR aims to address the following warning that prevents bits from being published:

Cause

Root cause of this problem is that typescript bits are exported different way for compiler of version 3.1.* - specifically, dynamic import expressions are used for modules (examples provided below) that drives webpack into frustration (webpack/webpack#196).

And even given that production bundle size had remained to be almost exactly the same (7.35 -> 7.47MB), this fact results in webpack warning that fails build.

Was

Now

Solution

Use ContextReplacementPlugin to explicitly suggest the files that should be statically analysed by Webpack for bundling. With this approach

• 👍 robust solution for handling dynamic imports in TS package is introduced
• 👍 TS version is upgraded for the direct consumers of the library - this is necessary to eliminate --skipLibCheck requirement from client's projects

[codecov]

Codecov Report

Merging #380 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #380   +/-   ##
=======================================
  Coverage   90.55%   90.55%           
=======================================
  Files          67       67           
  Lines        1334     1334           
  Branches      169      194   +25     
=======================================
  Hits         1208     1208           
  Misses        123      123           
  Partials        3        3

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