Move hashbrown and foldhash out of bevy_utils

[bushrat011899]

Objective

• Contributes to Reorganise Platform Support Dependencies #16877

Solution

• Moved hashbrown, foldhash, and related types out of bevy_utils and into bevy_platform_support
• Refactored the above to match the layout of these types in std.
• Updated crates as required.

Testing

• CI

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Migration Guide

• The following items were moved out of bevy_utils and into bevy_platform_support::hash:
  • FixedState
  • DefaultHasher
  • RandomState
  • FixedHasher
  • Hashed
  • PassHash
  • PassHasher
  • NoOpHash
• The following items were moved out of bevy_utils and into bevy_platform_support::collections:
  • HashMap
  • HashSet
• bevy_utils::hashbrown has been removed. Instead, import from bevy_platform_support::collections or take a dependency on hashbrown directly.
• bevy_utils::Entry has been removed. Instead, import from bevy_platform_support::collections::hash_map or bevy_platform_support::collections::hash_set as appropriate.
• All of the above equally apply to bevy::utils and bevy::platform_support.

Notes

• I left PreHashMap, PreHashMapExt, and TypeIdMap in bevy_utils as they might be candidates for micro-crating. They can always be moved into bevy_platform_support at a later date if desired.

[bushrat011899]

Marking as X-Blessed for the same reasons outlined here.