feat(rdr): add NETWORK_DOES_ENTITY_EXIST_WITH_NETWORK_ID as a Cfx native

[AvarianKnight]

Goal of this PR

Allow the usage of NETWORK_DOES_ENTITY_EXIST_WITH_NETWORK_ID without needing to directly invoke 0x18A47D074708FD68.

This also copies the ScRT warnings to provide more useful warnings.

How is this PR achieving the goal

Declared the native as a Cfx native and include scripting core warnings.

This PR applies to the following area(s)

RedM

Successfully tested on

Game builds: 1491

Platforms: Windows

Checklist

• [x] Code compiles and has been tested successfully.
• [x] Code explains itself well and/or is documented.
• [x] My commit message explains what the changes do and what they are for.
• [x] No extra compilation warnings are added by these changes.

Fixes issues

[martonp96]

Tested, working, thank you for the contribution.