public boolean alreadyExists(String scriptName) {
		return getExistingScriptInfo(scriptName) != null;
	}
Looks through all of the current {@link ScriptInfo}s to see if one already exists with 
the given name.
@param scriptName The name to check
@return true if the name is not taken by an existing {@link ScriptInfo}.
Ghidra/Features/Base/src/main/java/ghidra/app/script/GhidraScriptInfoManager.java