Added feature plan

Also created README.md

README.md

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+# LX Language
+
+This is my custom compiled language written in C++ based off of the LLVM toolchain. Do not use the language in it's current state unless you are insane.
+
+### Planned features
+- Variables
+- Operations (Maths + BinOp)
+- Functions
+- More than just int as a type
+- Structs / Classes (Polymorphism + vtables)
+
+### Stuff I want to do later
+- I/O manager (Console, Files)
+- Debugger support
+- Extensions for vscode / vs22
+- Build system
+- SSA (Static single assignment)
+- LX-Core (Basic Standard Lib)
+- SIMD (Single instruction, multiple data)
+- Built in features for multi-language code (C, C++, C#, Rust...)
+- Custom Linker written in rust
+- Package manager
+- Custom optimiser (+ O3 in Clang)
+- Complicated LX-Core:
+    - Graphics APIs support
+    - Networking support
+    - WinAPI compatiability
+
+### Stuff I might do later
+- JIT (Just in time compiler) / Interpreter
+- Different compiler backends
+- Python support
+- Non-windows OS support