feat: Add screenshot tests for topographic-v2 maps. BM-1356

[Wentao-Kuang]

Motivation

Update all the topographic tests to point to topgraphic-v2 data now.
And only kept four old topographic tests as we will stop supporting them soon.

Modifications

• Refactored all topographic basemap tests to reference topographic-v2 instead.

• Copied a select few of the existing topographic tests to the end of the test list.

• Grouped similar tests under heading, such as:

  /**
   * topographic-v2: north island
   */
  

• Added detail to non-descriptive names, such as:

  Before	After
  topographic-v2-3857-z8	topographic-v2-3857-north-island-z8

• Referenced test locations by constants, such as:

  Before	After
  location: { lat: -41.8899962, lng: 174.0492437, z: 5 },	location: { ...Locs.Mainland, z: 5 },

Verification

[tawera-manaena]

Important Changes - @linz/proj-basemaps

• Many of our tests point to similar locations, but not exact. We've consolidated such locations to point to the exact same location, referenced by variable (e.g. Locs.Mainland). This means that, once this work merges, some tests will look overwhelmingly red as they point to slightly different locations. This will only occur the first time.
• We've also modified the names of existing tests to be more descriptive (e.g. health-3857-z5 to health-3857-mainland-z5). This means that such tests will appear as_new_ tests. Similarly, this will only occur the first time.