feat: (core) x-compile-omitted supports object path-like keys

[charlzyx]

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What have you changed?

The x-compile-omitted feature now supports object path-like keys (e.g., a.b) instead of being limited to single-level keys.

before:

{
 'x-compile-omitted': ['x-validator']
}

after:

{
 'x-compile-omitted': ['x-validator', 'x-component-props.aa']
}