feat(ui): Host platform images on datahub-web-react

[ngamanda]

Adds capability for users to host their platform images (from src/images) on their react app instead.

Context: https://datahubspace.slack.com/archives/CV2UXSE9L/p1644477881072309

Changes

• Installs CopyWebpackPlugin to copy src/images to platforms
• [Updated] data_platforms.json files are updated to use the new relative url

Sample Usage:

// data_platforms.json
{
    "urn": "urn:li:dataPlatform:hive",
    "aspect": {
      "datasetNameDelimiter": ".",
      "name": "hive",
      "displayName": "Hive",
      "type": "FILE_SYSTEM",
      - "logoUrl": "https://raw.githubusercontent.com/linkedin/datahub/master/datahub-web-react/src/images/hivelogo.png"
      + "logoUrl": "/assets/platforms/hivelogo.png"
    }
  },

Checklist

• The PR conforms to DataHub's Contributing Guideline (particularly Commit Message Format)
• Links to related issues (if applicable)
• Tests for the changes have been added/updated (if applicable)
• Docs related to the changes have been added/updated (if applicable)

[github-actions]

Unit Test Results (build & test)

  70 files  +1    70 suites  +1   15m 49s ⏱️ + 1m 2s
609 tests +5  550 ✔️ +5  59 💤 ±0  0 ❌ ±0 

Results for commit bedc690. ± Comparison against base commit 9bdc9af.

♻️ This comment has been updated with latest results.

[gabe-lyons]

Hey @ngamanda, thoughts on just doing this for everyone? I think most (if not all) of folks would prefer hosting their own platform logos, and the additional cost should be pretty small. Any reason not to automatically do this?

[ngamanda]

Hi @gabe-lyons ! I thought to leave it as optional. But yes, I'd think most users would also prefer to host their own assets. I've updated the PR with the changes :)

[gabe-lyons]

can we just add an explanation for why the copy is needed? otherwise looks great!! thanks @ngamanda

[ngamanda]

Added!

[github-actions]

Unit Test Results (metadata ingestion)

    3 files  ±  0      3 suites  ±0   41m 22s ⏱️ - 1m 40s
317 tests +  5  317 ✔️ +  5    0 💤 ±0  0 ❌ ±0 
908 runs  +12  886 ✔️ +10  22 💤 +2  0 ❌ ±0 

Results for commit bedc690. ± Comparison against base commit 9bdc9af.

This pull request removes 1 and adds 6 tests. Note that renamed tests count towards both.

tests.unit.test_utilities ‑ test_groupby_unsorted

tests.integration.kafka.test_kafka_state ‑ test_kafka_ingest_with_stateful
tests.unit.stateful_ingestion.test_kafka_state ‑ test_kafka_common_state
tests.unit.test_athena_source ‑ test_athena_get_table_properties
tests.unit.test_athena_source ‑ test_athena_uri
tests.unit.test_kafka_source.KafkaSourceTest ‑ test_kafka_source_stateful_ingestion_requires_platform_instance
tests.unit.test_kafka_source.KafkaSourceTest ‑ test_kafka_source_workunits_with_platform_instance

[shirshanka]

LGTM!