Update Titanium TypeScript typings to SDK 7.3.0

[hansemannn]

Please fill in this template.

• Use a meaningful title for the pull request. Include the name of the package modified.
• Test the change in your own code. (Compile and run.)
• Add or edit tests to reflect the change. (Run with npm test.)
• Follow the advice from the readme.
• Avoid common mistakes.
• Run npm run lint package-name (or tsc if no tslint.json is present).

Select one of these and delete the others:

If changing an existing definition:

• Provide a URL to documentation or source code which provides context for the suggested changes: https://www.appcelerator.com/blog/2018/07/rc-release-titanium-sdk-7-3-0-appcelerator-studio-5-1-0/
• Increase the version number in the header if appropriate.
• If you are making substantial changes, consider adding a tslint.json containing { "extends": "dtslint/dt.json" }.

[hansemannn]

cc @janvennemann, let me know if more is required.

[typescript-bot]

@hansemannn Thank you for submitting this PR!

🔔 @appcelerator @janvennemann - please review this PR in the next few days. Be sure to explicitly select Approve or Request Changes in the GitHub UI so I know what's going on.

If no reviewer appears after a week, a DefinitelyTyped maintainer will review the PR instead.

[typescript-bot]

@hansemannn The Travis CI build failed! Please review the logs for more information.

Once you've pushed the fixes, the build will automatically re-run. Thanks!

[janvennemann]

@hansemannn Please remove the ti.map tests as that is an external module. Also remove the double newline at the end of the definition file to end it with only one new line. Also the version in the header needs to be bumped accordingly. Then this should be good 👍

[typescript-bot]

A definition owner has approved this PR ⭐️. A maintainer will merge this PR shortly. If it shouldn't be merged yet, please leave a comment saying so and we'll wait. Thank you for your contribution to DefinitelyTyped!

[janvennemann]

Looking good now, approved!

[uniqueiniquity]

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