split abseil into separate repo, add README

Author: Jan200101

README.md

@@ -0,0 +1,28 @@
+# protobuf
+
+[protobuf](https://github.com/protocolbuffers/protobuf) but packaged for [Zig](https://ziglang.org).
+
+## How to add to your project
+
+`zig fetch --save git+https://github.com/Jan200101/ziggy-protobuf`
+
+You can then access the available libraries and executables like this:
+```zig
+const protobuf_dep = b.dependency("protobuf", .{
+    .target = target,
+    .optimize = optimize,
+});
+
+// µpb
+const upb = protobuf_dep.artifact("upb");
+
+// libprotobuf
+const libprotoc = protobuf_dep.artifact("protobuf");
+
+// libprotoc
+const libprotoc = protobuf_dep.artifact("protoc");
+
+// protoc
+const protoc = protobuf_dep.artifact("protoc");
+```
+

build.zig.zon

@@ -7,7 +7,10 @@
             .url = "https://github.com/protocolbuffers/protobuf/releases/download/v35.1/protobuf-35.1.tar.gz",
             .hash = "N-V-__8AAKESzQLTflk_8mGwLlk9VhY62vntiaDf9ZwZwX6U",
         },
-        .abseil = .{ .path = "pkg/abseil" },
+        .abseil = .{
+            .url = "git+https://github.com/Jan200101/ziggy-abseil#722e1089262cdce8e485363a6729c06b6ca2efa9",
+            .hash = "abseil-0.0.0-M-myhlIkAACpKaKXQ-J4u1tJAiCK7eIijCWjawVp3BQZ",
+        },
     },
     .paths = .{""},
 }