nuke leftovers and add more externals

Signed-off-by: crueter <crueter@eden-emu.dev>

.ci/license-header.rb

@@ -1,47 +0,0 @@
-#!/usr/bin/ruby
-# frozen_string_literal: true
-
-license_header = <<~EOF
-      // SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
-      // SPDX-License-Identifier: GPL-3.0-or-later
-      EOF
-
-print 'Getting branch changes...'
-branch_name = `git rev-parse --abbrev-ref HEAD`.chomp
-branch_commits = `git log #{branch_name} --not master --pretty=format:"%h"`.split("\n")
-branch_commit_range = "#{branch_commits[-1]}^..#{branch_commits[0]}"
-branch_changed_files = `git diff-tree --no-commit-id --name-only #{branch_commit_range} -r`.split("\n")
-puts 'done'
-
-print 'Checking files...'
-issue_files = []
-branch_changed_files.each do |file_name|
-   if file_name.end_with?('.cpp', '.h', '.kt', '.kts') and File.file?(file_name)
-      file_content = File.read(file_name)
-      if not file_content.start_with?(license_header)
-         issue_files.push(file_name)
-      end
-   end
-end
-puts 'done'
-
-if issue_files.empty?
-   puts "\nAll changed files have correct headers"
-   exit 0
-end
-
-puts <<-EOF
-
-The following #{issue_files.length} files have incorrect license headers:
-#{issue_files.join("\n")}
-
-The following license header should be added to the start of all offending files:
-=== BEGIN ===
-#{license_header}
-===  END  ===
-
-If some of the code in this PR is not being contributed by the original author, the files which have been exclusively changed by that code can be ignored.
-If this happens, this PR requirement can be bypassed once all other files are addressed.
-EOF
-
-exit 1

.ci/license-header.sh

@@ -4,7 +4,7 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 
 # specify full path if dupes may exist
-EXCLUDE_FILES="CPM.cmake CPMUtil.cmake GetSCMRev.cmake sse2neon.h tools/cpm"
+EXCLUDE_FILES="CPM.cmake CPMUtil.cmake GetSCMRev.cmake sse2neon.h renderdoc_app.h tools/cpm externals/stb externals/glad externals/getopt externals/gamemode externals/FidelityFX-FSR externals/demangle externals/bc_decoder"
 
 # license header constants, please change when needed :))))
 YEAR=2025

.ci/license/header-hash.txt

@@ -1,2 +0,0 @@
-# SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
-# SPDX-License-Identifier: GPL-3.0-or-later

.ci/license/header.txt

@@ -1,2 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later