Add iOS and Android as pythonPlatform

[timrid]

Fixes #10752

[thunder-coding]

Seems like someone beat me to this even before I started working on this yesterday (should have searched in open PRs). Have provided some feedback, please do give a look.

Also while we are at it, why not also also apply the following patch for auto detection of android platform on Android. Node.js is supported as an experimental platform on Android, and there is a significant amount of work I've done to ensure that Node.js works well on Android (inside Termux specifically):

diff --git a/packages/pyright-internal/src/common/fullAccessHost.ts b/packages/pyright-internal/src/common/fullAccessHost.ts
index b8adae491..f881b25b5 100644
--- a/packages/pyright-internal/src/common/fullAccessHost.ts
+++ b/packages/pyright-internal/src/common/fullAccessHost.ts
@@ -58,6 +58,8 @@ export class LimitedAccessHost extends NoAccessHost {
             return PythonPlatform.Linux;
         } else if (process.platform === 'win32') {
             return PythonPlatform.Windows;
+        } else if (process.platform === 'android') {
+            return PythonPlatform.Android;
         }
 
         return undefined;

[thunder-coding]

Suggested change

	return 'android';
	// Python >= 3.13 reports Android as 'android', earlier used to report it as 'linux'
	if (execEnv.pythonVersion.major === 3 && execEnv.pythonVersion.minor >= 13) {
	return 'android';
	} else {
	return 'linux';
	}

This isn't a simple replacement. Python versions before 3.13 used to return "linux" on Android for sys.platform. Although those versions weren't officially supported. Not sure what the take of PyRight devs is on this one. But I think we should be preserving some sort of backward compatibility here

[timrid]

I like the idea of backward compatibility. I have expanded the PR with your suggestions.