Add library with Rust bindings to target_f1 code (#68)

* Move flipper-core into a workspace

* Fix target build rules

* Add flipper-f1-sys library

* Add flipper-f1-sys dependency to flipper-core

* Remove apparently useless includes

* Build and export HAL statics

* Disable Rust dependency detection for target_f1 build

* Install libclang-10-dev in docker

* Build Rust libs every time

* remove duplicate sources from make

* clean build different example

* wip add example fn

* Implement rust_uart_write()

* fix rebuild instructions for target_f1

Co-authored-by: aanper <mail@s3f.ru>

core-rs/Cargo.toml

@@ -1,14 +1,8 @@
-[package]
-name = "flipper-core"
-version = "0.1.0"
-authors = ["Vadim Kaushan <admin@disasm.info>"]
-edition = "2018"
-
-[lib]
-crate-type = ["staticlib"]
-
-[build-dependencies]
-cbindgen = "0.14"
+[workspace]
+members = [
+    "flipper-core",
+    "flipper-f1-sys",
+]
 
 [profile.release]
 codegen-units = 1 # better optimizations