Align SkyHook event types/labels with external SkyHook API and fix consumer event type references

[2228293026]

Motivation

• Make the internal SkyHook compatibility layer match the external SkyHook definitions for EventType and KeyLabel and avoid type ambiguities.
• Ensure time conversion and event creation align with the game's SkyHook event layout and tick units.
• Prevent incorrect enum resolution in the input consumer hot paths by qualifying references to the external SkyHook types.

Description

• Removed duplicate internal EventType and KeyLabel enums and switched to using global::SkyHook.EventType and global::SkyHook.KeyLabel throughout the compatibility layer and consumer code.
• Reworked SkyHookEvent layout: removed Flags and ExtraInfo fields, added GetTimeInTicks() helper, and adjusted Create to accept elapsedTicks in 100ns units and produce TimeSec/TimeSubsecNano.
• Simplified time conversion logic in ConvertTicksToSkyHookTime and corrected the mapping logic in the key-label lookup via a switch expression returning global::SkyHook.KeyLabel.
• Qualified enum comparisons in AsyncInputManager hot paths to global::SkyHook.EventType to avoid ambiguous references and ensure the JIT-warmed paths use the correct types.
• Added Windows INPUT / KEYBDINPUT / MOUSEINPUT / HARDWAREINPUT interop structs to the compatibility file and removed unused usings.

Testing

• Built the solution with dotnet build and the build completed successfully.
• Ran the test suite with dotnet test and all automated tests passed.
• Verified the project compiles cleanly after the enum/struct changes and that input consumer code resolves the external SkyHook enums without ambiguity.

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Codex Task