test: create bundler testing workspace

[kuhe]

Creates a bundler testing workspace in which various bundle sizes can be measured.

Output:

{
  app: 'NormalizedSchema.ts',
  rollup: '8 kb',
  rollup_no_minification: '14 kb',
  webpack: '8 kb'
}
{
  app: 'abstract-protocols.ts',
  rollup: '24 kb',
  rollup_no_minification: '50 kb',
  webpack: '23 kb'
}
{
  app: 'cbor-client-aggregate.ts',
  rollup: '87 kb',
  rollup_no_minification: '187 kb',
  webpack: '85 kb'
}
{
  app: 'cbor-client.ts',
  rollup: '70 kb',
  rollup_no_minification: '155 kb',
  webpack: '69 kb'
}
{
  app: 'cbor-protocol.ts',
  rollup: '31 kb',
  rollup_no_minification: '68 kb',
  webpack: '31 kb'
}