feat(dev-tools): Partial webpack 5 support

[ibgreen]

Adds new flag to ocularrc.js: webpack.version.

Generates updated webpack config in this case.

Still haven't been able to get BrowserTestDriver working so still installing webpack 4.

@ilijapuaca

[coveralls]

Pull Request Test Coverage Report for Build 962570565

• 17 of 31 (54.84%) changed or added relevant lines in 2 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-1.2%) to 71.639%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
modules/dev-tools/src/configuration/get-webpack-config.js	10	16	62.5%
modules/dev-tools/node/test.js	7	15	46.67%

Files with Coverage Reduction	New Missed Lines	%
modules/dev-tools/node/test.js	1	31.82%

Totals
Change from base Build 962567400:	-1.2%
Covered Lines:	266
Relevant Lines:	331

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💛 - Coveralls