[TF2] Razorback and Gas Passer meters' strings are in lowercase

[Ashetf2]

[Ashetf2]

For the Gas Passer, just change the string "TF_GAS" to "GAS" from "Gas"

For the Razorback, a new string needs to be created because it's reusing the name of the razorback (TF_UNIQUE_BACKSTAB_SHIELD). It could be for example "TF_BACKSTAB_SHIELD" "RAZORBACK" (though I think it is a bit large, maybe it should be just "SHIELD"). Later, in items_game.txt, for the razorback:

"57"
{
			"name"			"The Razorback"
			"prefab"	"valve"
...
"static_attrs"
			{
				"item_meter_charge_type"						"1"
				"item_meter_charge_rate"			"30"
				"meter_label"							"#TF_BACKSTAB_SHIELD" <-- NEW STRING
			}

[gaelcoral]

A new meter string is needed for the Razorback, as there is an issue in Spanish and possibly in other languages, where the meter does not fit e.g. in spanish