Rework solution structure to allow more types of library projects (#196)

* Rename avalonia & wpf samples

* Rename rest of samples

* fix sample readme

* Fix compat util tests

* rename / move all src projects

* remove package lock files and move libC# again

* Add rust lib and cargo workspace

* Replace locksmith lib with new filelocksmith-rs library

* Deprecated type

* fix setup compile

* Use thiserror for error handling

* Rename some enums and formatting

* Add missing SHA256

* wip c++ library

* cpp wip

* alphabetize readme

* Try to get build working again

* Fix some conditionally compiled bits

* cross config should be in workspace root

* Fix PathHelper for new rust target dir

* Missed one old path to velopack.csproj

* remove obsolete coverage code

* testawareapp.exe no longer exists

Cargo.toml

@@ -0,0 +1,30 @@
+[workspace]
+resolver = "2"
+members = [
+    "src/bins",
+    "src/lib-rust",
+    # "src/lib-cpp/generator"
+]
+
+[workspace.package]
+authors = ["Caelan Sayler <git@caesay.com>"]
+homepage = "https://velopack.io"
+repository = "https://github.com/velopack/velopack"
+documentation = "https://docs.velopack.io"
+keywords = ["update", "install", "velopack", "squirrel", "automatic-updates"]
+categories = ["development-tools"]
+license = "MIT"
+edition = "2021"
+rust-version = "1.75"
+
+# default to small, optimized workspace release binaries
+[profile.release]
+opt-level = "z"          # optimize for size
+lto = true               # link-time optimization
+debug = false            # disable debug info
+debug-assertions = false # disable debug assertions
+overflow-checks = false  # disable overflow checks
+panic = "abort"          # abort on panic
+incremental = false      # disable incremental compilation
+codegen-units = 1        # compile all code into a single unit
+rpath = false            # disable rpath