move au into nu/render

src/nu/Render.zig

@@ -6,17 +6,17 @@ const std = @import("std");
 const builtin = @import("builtin");
 const vk = @import("vk");
 
-const ctx = @import("Render/Context.zig");
+const au = @import("Render/au.zig");
 
 pub const Options = struct {
-    app_name: []const u8 = "nu-au-app",
+    app_name: [*:0]const u8 = "nu-au-app",
     app_version: struct {
         variant: u3 = 0,
         major: u7 = 0,
         minor: u10 = 0,
         patch: u12 = 0,
     } = .{},
-    engine_name: []const u8 = "nu-au",
+    engine_name: [*:0]const u8 = "nu-au",
     engine_version: struct {
         variant: u3 = 0,
         major: u7 = 0,
@@ -29,12 +29,12 @@ pub const Options = struct {
 pub fn init(alloc: std.mem.Allocator) !void {
     // todo make ctx not globals
 
-    try ctx.init(alloc);
-    errdefer ctx.deinit();
+    try au.init(alloc);
+    errdefer au.deinit();
 }
 
 pub fn frame() void {}
 
 pub fn deinit() void {
-    ctx.deinit();
+    au.deinit();
 }