Silicon Accents (#9429)

Stationbounds now have accents, starting off with Text-to-Speech, and can choose to mimic any accent.
    The bots that robotics can produce now also have TTS accents.
    IPCs can choose to use the TTS accent if they wish.

code/modules/background/accent/silicon.dm

@@ -0,0 +1,4 @@
+/datum/accent/silicon
+	name = ACCENT_SILICON
+	description = "A barebones text-to-speech accent. This is usually used to de-humanize or to cut speech synthesizer costs in silicon based machines."
+	tag_icon = "tts"

code/modules/background/defines.dm

@@ -88,4 +88,6 @@
 
 #define ACCENT_SKRELL "Standard Nral'Malic"
 
-#define ACCENT_DIONA "Diona"
+#define ACCENT_DIONA "Diona"
+
+#define ACCENT_SILICON "Text-to-Speech"