refactor: allow mocking of root module functions for easier unittesting

src/renderer/vaxis/std/debug.zig

@@ -6,7 +6,7 @@ const io = std.io;
 const posix = std.posix;
 const fs = std.fs;
 const testing = std.testing;
-const root = @import("root");
+const root = @import("soft_root").root;
 const File = std.fs.File;
 const windows = std.os.windows;
 const native_arch = builtin.cpu.arch;