Better way to include static contents into CookedPCConsole?

[Xymanek]

In CI, we include a static README.txt to explain that these assets are not openable in the editor to any other modmaker who might be curious/interested in them.

To do that, we pre-create the CookedPCConsole directory and place the file there. X2MBC then sees that the directory exists and skips its creation:

X2ModBuildCommon/build_common.ps1

Lines 739 to 743 in da647e0

	# Prepare the folder for cooked stuff
	$stagingCookedDir = [io.path]::combine($this.stagingPath, 'CookedPCConsole')
	if (!(Test-Path $stagingCookedDir)) {
	New-Item -ItemType "directory" -Path $stagingCookedDir
	}

This is confusing to anyone looking at the project/repo itself (not the built mod) who doesn't know this peculiarity of the build process.

Potentially relevant for #40