Description:

• Allows siege start days to be limited to one every 2 weeks

New Nodes/Commands/ConfigOptions:

	SIEGE_START_DAY_LIMITER_ALLOWED_WEEKS(
			"siege_start_day_limiter.allowed_siege_start_weeks",
			"weekly",
			"",
			"# This setting allows siege starts to be limited by week.",
			"# Permitted values: weekly, odd-weeks-only, even-weeks-only"),

Relevant Issue ticket:

Closes #992

• [ N/A Hopefully too trivial ] I have tested this pull request for defects on a server.

By making this pull request, I represent that I have the right to waive copyright and related rights to my contribution, and agree that all copyright and related rights in my contributions are waived, and I acknowledge that the TownyAdvanced organization has the copyright to use and modify my contribution under the SiegeWar License for perpetuity.