src: initial cut at templates for security-wg

Initial cut at templates, will test out later today
and adjust if necessary.

Author: mhdawson

templates/invited_security-wg

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+* Security wg team: @nodejs/security-wg

templates/meeting_base_security-wg

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+CALENDAR_FILTER="Security-WG meeting"
+CALENDAR_ID="nodejs.org_nr77ama8p7d7f9ajrpnu506c98@group.calendar.google.com"
+USER="nodejs"
+REPO="security-wg"
+GROUP_NAME="Security WorkGroup"
+JOINING_INSTRUCTIONS="
+
+* link for participants: Will be added a few minutes before meeting starts
+* For those who just want to watch: 
+* youtube admin page: https://www.youtube.com/my_live_events?filter=scheduled"

templates/minutes_base_security-wg

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+# $TITLE$
+
+## Links
+
+* **Recording**:  
+* **GitHub Issue**: $GITHUB_ISSUE$
+* **Minutes Google Doc**: $MINUTES_DOC$
+
+## Present
+
+$INVITED$
+$OBSERVERS$
+
+## Agenda
+
+## Announcements
+ 
+*Extracted from **security-wg-agenda** labelled issues and pull requests from the **nodejs org** prior to the meeting.
+
+$AGENDA_CONTENT$
+
+## Q&A, Other
+
+## Upcoming Meetings
+
+* **Node.js Foundation Calendar**: https://nodejs.org/calendar
+
+Click `+GoogleCalendar` at the bottom right to add to your own Google calendar.
+

templates/observers_security-wg

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+