Added the sample for the 3d tiles layer

[jingyili1023]

Description

Add a new cpp sample for the 3d tiles layer.

Type of change

• Bug fix
• New sample implementation
• Sample viewer enhancement
• Other enhancement

Platforms tested on:

• Windows
• Android
• Linux
• macOS
• iOS

Checklist

• Runs and compiles on all active platforms as a standalone sample
• Runs and compiles in the sample viewer(s)
• Branch is up to date with the latest main/v.next
• All merge conflicts have been resolved
• Self-review of changes
• There are no warnings related to changes
• No unrelated changes have been made to any other code or project files
• Code is commented with correct formatting (CTRL+i)
• All variable and method names are camel case
• There is no leftover commented code
• Screenshots are correct size and display in description tab (500px by 500px, platform agnostic)
• If adding a new sample, it is added to the sample viewer
• Cherry-picked to Main branch (if applicable)

[tanneryould]

Honestly I'm really impressed, this is really well done! There's a few finicky changes, plus some code cleanup that needs to be done, but on the whole you should be really proud of this!

[tanneryould]

Random code cleanup. Try to avoid double line breaks and generally the first line in a method should not be a line break.

[ldanzinger]

What's the status of this PR? Is it being redesigned to use services and remove the PE Data, since 200.4 will automatically use the required grid files?

[jingyili1023]

@ldanzinger I created this PR but was unable to merge it because the dataset I used had not been finalized. Ping has logged an issue for this in our backlog. @khajra can probably shed more light on this.

[jingyili1023]

@tanneryould, I just updated this PR to reflect the change on the sample design. Please do another round of review. Thank you!

[tanneryould]

Looks good, just need to remove a few things

[jingyili1023]

Thanks for spotting these redundancies. I got them removed.

[tanneryould]

LGTM thank you!