Bump imgui to 0.12 and version to 0.7 (#189)

Due to a panic (see imgui-rs/imgui-rs#775), unreleased as of 0.12, this PR points to a specific commit. This will be reverted once the fix is released.

CONTRIBUTING.md

@@ -0,0 +1,24 @@
+# Contributing
+
+I want to turn this into a suitable guide for new contributors, but we're not there yet. Sorry :(
+
+## Testing on Linux
+
+On Linux, the default cross compilation target is `x86_64-pc-windows-gnu`. Cross compilation
+is necessary due to DirectX being Windows only. It is recommended to also install the 32-bit
+target.
+
+```
+rustup target add x86_64-pc-windows-gnu
+rustup target add i686-pc-windows-gnu
+```
+
+To run tests in Wine, it is necessary to install your distribution's mingw32 package, and add
+the DLL paths to `$WINEPATH`:
+
+```
+export WINEPATH=/usr/x86_64-w64-mingw32/bin
+```
+
+Your path could be different, depending on where your distribution installs the packages.
+The one above is valid on Manjaro; the `mingw-w64-*` packages are the ones to install.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "hudhook"
-version = "0.6.5"
+version = "0.7.0"
 edition = "2021"
 description = "A graphics API hook with dear imgui render loop. Supports DirectX 9, 11, 12, and OpenGL 3."
 homepage = "https://github.com/veeenu/hudhook"
@@ -56,7 +56,7 @@ crate-type = ["cdylib"]
 
 [dependencies]
 bitflags = "2.5.0"
-imgui = "0.11"
+imgui = "0.12"
 memoffset = "0.9.0"
 once_cell = { version = "1.18.0", default-features = false }
 parking_lot = "0.12"
@@ -102,3 +102,7 @@ gl_generator = { version = "0.14.0", optional = true }
 opt-level = 3
 overflow-checks = false
 lto = "thin"
+
+# TODO: remove this once the fix to imgui-rs/imgui-rs#775 gets released.
+[patch.'crates-io']
+imgui = { git = "https://github.com/imgui-rs/imgui-rs", rev = "cb8beeb" }