Faction banners, flags, and decals.

[H2Owe]

About the PR

Added decals, flags and banners for factions

Why / Balance

art

How to test

When spawning entities, search for "flag" or "banner" and the new ones will be there.
In the decal spawning menu, the new decals are there.

Media

Requirements

• I have read and am following the Pull Request and Changelog Guidelines.
• I have added media to this PR or it does not require an ingame showcase.

Breaking changes

Changelog
🆑
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Changed the Independent decal to be more purple instead of blue

[github-actions]

RSI Diff Bot; head commit 76399be merging into d532268
This PR makes changes to 1 or more RSIs. Here is a summary of all changes:

Resources/Textures/_Goobstation/Decals/gorlexdecal.rsi

State	Old	New	Status
Gorlex1			Added
Gorlex2			Added
Gorlex3			Added
Gorlex4			Added
Gorlex5			Added
Gorlex6			Added
Gorlex7			Added
Gorlex8			Added
Gorlex9			Added

Resources/Textures/_Goobstation/Decals/indiedecal.rsi

State	Old	New	Status
Indie1			Added
Indie2			Added
Indie3			Added
Indie4			Added
Indie5			Added
Indie6			Added
Indie7			Added
Indie8			Added
Indie9			Added

Resources/Textures/_Goobstation/Structures/Decoration/bannersfaction.rsi

State	Old	New	Status
banner_TSF			Added
banner_gorlex			Added
banner_indie			Added

Resources/Textures/_Goobstation/Structures/Wallmounts/flagsfactions.rsi

State	Old	New	Status
gorlex_flag			Added
indie_flag			Added
tsf_flag			Added

Edit: diff updated after 76399be