Anonymizes chapel intercom, so chaplain doesn't know who's talking. (#54476)

Adds support for radio's that anonimize the user, and adds one to every chapel.
It adds a new layer of immersion, and the option to anonizmie the speaker adds new options for mappers.

code/game/objects/items/devices/radio/intercom.dm

@@ -140,3 +140,9 @@
 	pixel_shift = 29
 	inverse = TRUE
 	custom_materials = list(/datum/material/iron = 75, /datum/material/glass = 25)
+
+/obj/item/radio/intercom/chapel
+	name = "Confessional intercom"
+	anonymize = TRUE
+	frequency = 1481
+	broadcasting = TRUE

code/game/objects/items/devices/radio/radio.dm

@@ -33,6 +33,9 @@
 	var/use_command = FALSE  // If true, broadcasts will be large and BOLD.
 	var/command = FALSE  // If true, use_command can be toggled at will.
 
+	///makes anyone who is talking through this anonymous.
+	var/anonymize = FALSE
+
 	// Encryption key handling
 	var/obj/item/encryptionkey/keyslot
 	var/translate_binary = FALSE  // If true, can hear the special binary channel.