docs(cv): add new LaTeX CV templates and supporting source files

documents/sources/skills/languages.yml

@@ -0,0 +1,27 @@
+expert:
+  - Go
+  - JavaScript
+  - TypeScript
+  - Dart
+  - Protobufs
+strong:
+  - Python
+  - Objective-C
+  - Swift
+  - Kotlin
+  - Java
+  - C#
+  - SQL
+  - HTML/CSS
+  - Makefile
+familiar:
+  - C
+  - C++
+  - Rust
+  - PHP
+  - Ruby
+  - Perl
+  - MATLAB
+  - R
+  - Lua
+  - Zig