Squashed 'external/fmt/' content from commit e1832bcf

git-subtree-dir: external/fmt
git-subtree-split: e1832bcf00ed53048aea1e4d2408a68301dcd50c

.gitignore

@@ -0,0 +1,24 @@
+*.a
+*.so*
+*.xcodeproj
+*~
+.vscode/
+/CMakeScripts
+/Testing
+/_CPack_Packages
+/doc/doxyxml
+/doc/html
+/doc/node_modules
+/install_manifest.txt
+CMakeCache.txt
+CMakeFiles
+CPack*.cmake
+CTestTestfile.cmake
+FMT.build
+Makefile
+bin/
+build/
+cmake_install.cmake
+fmt-*.cmake
+fmt.pc
+virtualenv