feat(report/metrics): adds experimental stats

[sverweij]

Description

• adds the newly introduced (experimental) stats to the output of the metrics reporter
• refactors the metric reporter (so it's easier to provide other output formats later on)
• formats all the numbers with Intl - which is particularly useful for the size stat as that tends to run in the thousands.

Motivation and Context

Might prove useful

How Has This Been Tested?

• [x] green ci
• [x] updated & added automated non-regression tests

Screenshots

type    name                                                 N     Ca     Ce  I (%)        size   #tls
------- ----------------------------------------------- ------ ------ ------ ------ ----------- ------
folder  src                                                 13      0      0    0 %      36.125     99
folder  src/cache                                            6      0      6  100 %      25.367     54
module  src/cache/cache.mjs                                  1      0      5  100 %       5.817     12
module  src/cache/content-strategy.mjs                       1      1      2   67 %       3.948      7
module  src/cache/find-content-changes.mjs                   1      1      3   75 %       3.663      6
module  src/cache/helpers.mjs                                1      3      1   25 %       3.612     16
module  src/cache/metadata-strategy.mjs                      1      1      2   67 %       3.720      5
module  src/cache/options-compatible.mjs                     1      1      0    0 %       4.607      8
folder  src/extract                                          2      1      1   50 %       4.985     20
folder  src/extract/transpile                                2      1      1   50 %       4.985     20
module  src/extract/transpile/meta.mjs                       1      1      2   67 %       3.519     10
module  src/extract/transpile/try-import-available.mjs       1      1      0    0 %       1.466     10
folder  src/graph-utl                                        1      1      0    0 %         382      3
module  src/graph-utl/match-facade.mjs                       1      1      0    0 %         382      3
module  src/meta.cjs                                         1      1      0    0 %         467      1
folder  src/utl                                              3      4      0    0 %       4.924     21
module  src/utl/bus.mjs                                      1      3      0    0 %         766     10
module  src/utl/find-all-files.mjs                           1      1      1   50 %       3.040      9
module  src/utl/path-to-posix.mjs                            1      1      0    0 %       1.118      2

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] Documentation only change
• [x] Refactor (non-breaking change which fixes an issue without changing functionality)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• [x] :book:

  • My change doesn't require a documentation update, or ...
  • it does and I have updated it

• [x] :balance_scale:

  • The contribution will be subject to The MIT license, and I'm OK with that.
  • The contribution is my own original work.
  • I am ok with the stuff in CONTRIBUTING.md.

[codeclimate[bot]]

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