feat: add start:with-theme and build:with-theme NPM scripts with Paragon CLI

[adamstankiewicz]

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Integrates the base frontend-template-application MFE with the Paragon CLI command install-theme.

Allows engineers doing local development with custom @edx/brand NPM packages to run the custom brand without risking modifying/committing code with the custom @edx/brand package still installed.

[codecov[bot]]

Codecov Report

Patch and project coverage have no change.

Comparison is base (13c4d6a) 0.00% compared to head (3503158) 0.00%. Report is 10 commits behind head on master.

:exclamation: Current head 3503158 differs from pull request most recent head ba328da. Consider uploading reports for the commit ba328da to get more accurate results

Additional details and impacted files

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Files Changed	Coverage Δ
src/example/ExamplePage.jsx	0.00% <ø> (ø)

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[PKulkoRaccoonGang]

The initial logic for starting a project with a theme was added in this pull request