fix: ObjectAlignment enum names

[ufrshubham]

Description

Name of some of the enum values of ObjectAlignment were not matching the values from Tiled. As a result, tilesets with topLeft, topRight, bottomLeft and bottomRight alignment couldn't be parsed. https://doc.mapeditor.org/en/stable/reference/tmx-map-format/#tmx-tileset

Another problem that was discovered after fixing the names was with the byName method from the EnumByName extension. That method was not using names from ObjectAlignmentExtension that Tiled defines. To fix that, this PR adds a byName static method for ObjectAlignment which uses the correct names.

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.

Breaking Change

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

Related Issues

[jtmcdole]

Would you want to leave the enum symbols in lowerUpperCase to pass lint tests, but return the string lowercase?

[ufrshubham]

Would you want to leave the enum symbols in lowerUpperCase to pass lint tests, but return the string lowercase?

The lint warning were not for the enum change, but I made the change anyways 🙂

[ufrshubham]

@spydon I noticed that the pubspec.yaml was missing from the root of this project. If I am not wrong, it needs to be added because of melos. I added it in this PR, but now a lot of warnings are reported. Should I make these additional changes in a separate PR or pushing it along with this PR is fine?

Most of the warning are easily fixable, but these two seem to be from flame_lint:

warning • Warning in the included options file /opt/hostedtoolcache/flutter/3.13.9-stable/x64/.pub-cache/hosted/pub.dev/flame_lint-0.2.0+2/lib/analysis_options.yaml(122..135): The option 'implicit-casts' is no longer supported • analysis_options.yaml:1:10 • included_file_warning

warning • Warning in the included options file /opt/hostedtoolcache/flutter/3.13.9-stable/x64/.pub-cache/hosted/pub.dev/flame_lint-0.2.0+2/lib/analysis_options.yaml(148..163): The option 'implicit-dynamic' is no longer supported • analysis_options.yaml:1:10 • included_file_warning

[spydon]

@ufrshubham aah yes, that is needed for the "new" Melos version. You can fix them in this PR if it is easier for you. If you upgrade flame_lint to 1.1.1 the warning should go away.

[spydon]

Suggested change

	static ObjectAlignment byName(String name) {
	static ObjectAlignment fromName(String name) {

Maybe?

[ufrshubham]

Renamed to fromName

[spydon]

Haha aah, unlucky with one line going past 80 now 😅