Replace boost::assign usage with modern c++ brace initialization

[RyeMutt]

Description

Replace boost::assign usage with modern c++ brace initialization to reduce dependency on boost

Related Issues

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  • Bug Fix: Link to an issue that includes reproduction steps and testing guidance.
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Additional Notes

[Copilot]

Pull request overview

This PR modernizes the codebase by replacing deprecated boost::assign usage with C++11 brace initialization syntax, reducing dependency on Boost libraries. The changes make the code more readable and align with modern C++ practices.

• Removes boost::assign::list_of and boost::assign::map_list_of usage across multiple files
• Replaces with direct brace initialization for containers (vectors, sets, maps)
• Removes unnecessary Boost header includes and using declarations

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
indra/test/llevents_tut.cpp	Replaced list_of() with brace initialization for test assertions; contains type mismatches on lines 293, 325, and 345
indra/newview/llpresetsmanager.cpp	Converted camera control list from boost::assign::list_of to brace-initialized vector
indra/newview/llfeaturemanager.cpp	Replaced graphics level names initialization with brace syntax
indra/newview/llcommandlineparser.cpp	Converted unmapped options set to single-line brace initialization
indra/llfilesystem/tests/lldir_test.cpp	Updated test expectations to use brace initialization instead of list_of()
indra/llfilesystem/lldir.cpp	Converted static maps and sets to brace initialization; updated ENT macro syntax
indra/llcommon/tests/llstring_test.cpp	Replaced list_of() in test assertions with brace initialization; contains unused variable on line 768
indra/llcommon/tests/lldependencies_test.cpp	Updated dependency test assertions to use brace initialization

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