feat: Add isometric support for flame_tiled

[jtmcdole]

• Updates some forEach to regular for() loops
• Adds golden test with license free tilemaps

Description

Adds support for isometric Tiled files.

Checklist

• The title of my PR starts with a [Conventional Commit] prefix (fix:, feat:, docs: etc).
• I have read the [Contributor Guide] and followed the process outlined for submitting PRs.
• I have updated/added tests for ALL new/updated/fixed functionality.
• I have updated/added relevant documentation in docs and added dartdoc comments with ///.
• I have updated/added relevant examples in examples.

Do tests count as "examples"?

Breaking Change

• Yes, this is a breaking change.
• No, this is not a breaking change.

Related Issues

Fixes #1882

[spydon]

Nice! Good job

[jtmcdole]

Only those with write access to this repository can merge pull requests.

:)

[spydon]

Only those with write access to this repository can merge pull requests.

:)

I'm waiting for a second review

[jtmcdole]

Ah - solid! I'm looking at hex tiles now... for no other reason than completeness.