only run bindgen on ImPlot... names

not sure why bindgen switches to i32 everywhere
moved imgui dependency up one step as this seems where its actually used

implot-sys-bindgen/Cargo.toml

@@ -4,9 +4,6 @@ version = "0.1.0"
 authors = ["Sandro Merkli"]
 edition = "2018"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
-bindgen = "0.53.1"
+bindgen = "0.55.1"
 imgui-sys = { version = "0.5.0" }
-imgui = { version = "0.5.0" }

implot-sys-bindgen/build.rs

@@ -1,6 +1,4 @@
 use std::env;
-use std::io::Write;
-use std::path::PathBuf;
 
 fn main() {
     // We just forward the DEP_IMGUI_THIRD_PARTY variable here because the

implot-sys-bindgen/src/main.rs

@@ -34,6 +34,8 @@ fn main() {
         )
         .parse_callbacks(Box::new(CargoCallbacks))
         .clang_arg("-DCIMGUI_DEFINE_ENUMS_AND_STRUCTS=1")
+        .whitelist_function("ImPlot.*")
+        .whitelist_type("ImPlot.*")
         .generate()
         .expect("Unable to generate bindings");