Make FrozenActorsInBox a streaming enumerable.

Following the same layout as ActorsInBox, this streams the enumerable internally making it cheaper to call if only part of it is required, and also avoids building an intermediate list.
Fix Parachutable to work for tank drops
Move Upgrades and Prerequisites
Prevent divide by zero
disallow bots on Hopes Anchor
Merge pull request #7093 from RoosterDragon/frozen-stream

Make FrozenActorsInBox a streaming enumerable.
Changed parens

Changed parens
fix an oversight in #7081
Merge pull request #7106 from penev92/bleed_moveFiles

Move Upgrades and Prerequisites from Mods.RA to Mods.Common
Move some Render traits to Mods.Common
Moves traits from Common and Power namespaces to Common.Traits namespace
Renames RallyPoint effect to RallyPointIndicator
TimedUpgradeBar moved to Traits/Render
Moves loadscreens into LoadScreens folder/namespace.
Moves LoadWidgetAtGameStart to Traits/World.
Merge pull request #7114 from Mailaender/no-bots-koth-hopes-anchor

Disallowed bots on Hopes Anchor
Merge pull request #7113 from Smilex/issue_7100

Prevent divide by zero. Issue #7100
Splits AttackMove into trait and activity.
Moves them to subfolders/namespaces accordingly.
Merge pull request #7119 from Mailaender/allies01-tanya-crash

Fixed a Fatal Lua Error in the first Allies mission
Merge pull request #7116 from reaperrr/attackmove-split

Splits AttackMove into trait and activity
Merge pull request #7107 from reaperrr/ra-common-move01

Made Common namespaces more consistent