ios-specific options are offered on non-Darwin platforms

[Julian-O]

Versions

• Python: 3.11
• OS: Windows
• Buildozer: Master/2.2.0

Description

If you run buildozer -h on Windows, the commands listed include:

Target "ios" commands:
  list_identities    List the available identities to use for signing.
  xcode              Open the xcode project.

However, if you try to run these two commands, they fail, because they to run commands that are not installed.

Specifically, 'security find-identity -v -p codesigning' and 'open myapp.xcodeproj'

These two ios-specific commands should only be available on platforms that support them. (I assume 'darwin' only.)

[Julian-O]

Related #1564 (Duplicate?)