fix #3267, CORRECTLY, add testcase, add testcase for #3279 (#3681)

fixes #3267 AGAIN, correctly, add testcase
add testcase for #3679 , broadcast clipping incorrectly

I added a test module (tests/testNotification) to catch the notification
and check the count. (one way to configure)
i put this module in the tests folder, and added /tests to the server
paths.
(can't have a module in a nested folder, like tests/modules/xxx)

but I have a problem. i can run the test config (MM_CONFIG_FILE), and
the two modules work correctly,
but in the spec runner, the calendar module times out on the broadcast
test.. there is only local ics file access, no outside hosts

I forced my system date to 1/1/24 (same as runner) and again the manual
testcase works fine

I added two test config.js,(configs/calendar) one works great (symbols)
, one fails (broadcast test)
I added additional delay in the calendarspec runner to try to debug the
module, but it still not long enough.. no messages of trouble when I get
into the browser.. BUT, this may be because of the log being turned
off... (just thought of this)

I created a special ICS (in mocks) that has 12 events, 1 for each
month.. (so I can check clipping and broadcast) the US holidays one is
sensitive to the current date, and I couldn't get it to work on
1/1/2024..

also, in general, is there a mechanism to run test:just_one_runner?
waiting thru the electron test to get to one testcase.. ugh..

tests/mocks/testNotification/testNotification.js

@@ -0,0 +1,59 @@
+Module.register("testNotification", {
+	defaults: {
+		debug: false,
+		match: {
+			notificationID: "",
+			matchtype: "count"
+			//or
+			// type: 'contents' // look for item in field of content
+		}
+	},
+	count: 0,
+	table: null,
+	notificationReceived (notification, payload) {
+		if (notification === this.config.match.notificationID) {
+			if (this.config.match.matchtype === "count") {
+				this.count = payload.length;
+				if (this.count) {
+					this.table = document.createElement("table");
+					this.addTableRow(this.table, null, `${this.count}:elementCount`);
+					if (this.config.debug) {
+						payload.forEach((e, i) => {
+							this.addTableRow(this.table, i, e.title);
+						});
+					}
+				}
+
+				this.updateDom();
+			}
+		}
+	},
+	maketd (row, info) {
+		let td = document.createElement("td");
+		row.appendChild(td);
+		if (info !== null) {
+			let colinfo = info.toString().split(":");
+			if (colinfo.length === 2) td.className = colinfo[1];
+			td.innerText = colinfo[0];
+		}
+		return td;
+	},
+	addTableRow (table, col1 = null, col2 = null, col3 = null) {
+		let tableRow = document.createElement("tr");
+		table.appendChild(tableRow);
+
+		let tablecol1 = this.maketd(tableRow, col1);
+		let tablecol2 = this.maketd(tableRow, col2);
+		let tablecol3 = this.maketd(tableRow, col3);
+
+		return tableRow;
+	},
+	getDom () {
+		let wrapper = document.createElement("div");
+		if (this.table) {
+			wrapper.appendChild(this.table);
+		}
+		return wrapper;
+	}
+
+});