Update to latest zig and build.zig.zon requirements. (#42)

* updated to latest zig build

* adding a build.zig.zon file

.devcontainer/Dockerfile

@@ -3,6 +3,6 @@ RUN git config --global core.autocrlf input
 
 ADD . .
 
-RUN bash ./install-zig.sh 0.12.0-dev.3079+a1b083b66
+RUN bash ./install-zig.sh 0.12.0-dev.3283+b8920bceb
 
 ENV AGREE=true

build.zig.zon

@@ -0,0 +1,49 @@
+.{
+    .name = "protobuf",
+    // This is a [Semantic Version](https://semver.org/).
+    // In a future version of Zig it will be used for package deduplication.
+    .version = "0.0.0",
+
+    // This field is optional.
+    // This is currently advisory only; Zig does not yet do anything
+    // with this value.
+    //.minimum_zig_version = "0.11.0",
+
+    // This field is optional.
+    // Each dependency must either provide a `url` and `hash`, or a `path`.
+    // `zig build --fetch` can be used to fetch all dependencies of a package, recursively.
+    // Once all dependencies are fetched, `zig build` no longer requires
+    // internet connectivity.
+    //.dependencies = .{
+    //},
+
+    // Specifies the set of files and directories that are included in this package.
+    // Only files and directories listed here are included in the `hash` that
+    // is computed for this package.
+    // Paths are relative to the build root. Use the empty string (`""`) to refer to
+    // the build root itself.
+    // A directory listed here means that all files within, recursively, are included.
+    .paths = .{
+        // This makes *all* files, recursively, included in this package. It is generally
+        // better to explicitly list the files and directories instead, to insure that
+        // fetching from tarballs, file system paths, and version control all result
+        // in the same contents hash.
+        "",
+        // For example...
+        //"build.zig",
+        //"build.zig.zon",
+        //"src",
+        //"LICENSE",
+        //"README.md",
+        "build.zig",
+        "build.zig.zon",
+        "LICENSE.md",
+        "README.md",
+        ".gitignore",
+        ".devcontainer",
+        ".github",
+        "bootstrapped-generator",
+        "src",
+        "tests"
+    },
+}