Add Ytt toolchain. (#1)

* Use Ytt tool as a toolchain.
* Clean up dependencies.
* Bumped Ytt version: 0.45.0 => 0.46.2.
* Use Bazel 6.4.0.
* Deprecate `image` attribute.
* Change the repo structure.
* Update tests.

.bazelrc

@@ -1,5 +1,2 @@
 build --verbose_failures
 test --test_output=errors
-
-try-import %workspace%/.bazelrc.local
-

.bazelversion

@@ -1 +1 @@
-5.3.1
+6.4.0

README.md

@@ -6,26 +6,35 @@ Add to `WORKSPACE` file.
 ```starlark
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
+# The actual snippet see in Releases.
 http_archive(
-    name = "com_github_ebay_rules_ytt",
-    sha256 = "0232522fd7a07d2eb0a47fe4ec3a6dc8bc8e0bcbaa8abd658c6be53a34f5bd76",
-    strip_prefix = "rules_ytt-0.1.0",
+    name = "rules_ytt",
+    sha256 = "<sha256>",
+    strip_prefix = "rules_ytt-X.Y.Z",
     urls = [
-        "https://github.com/eBay/rules_ytt/releases/download/v0.1.0/rules_ytt-0.1.0.zip",
+        "https://github.com/ekhabarov/rules_ytt/releases/download/vX.Y.X/rules_ytt-X.Y.Z.zip",
     ],
 )
 
-load("@com_github_ebay_rules_ytt//:deps.bzl", "ytt_rules_dependencies")
+load("@rules_ytt//ytt:repositories.bzl",
+  "rules_ytt_dependencies",
+  "ytt_register_toolchains",
+)
+
+rules_ytt_dependencies()
 
-ytt_rules_dependencies()
+ytt_register_toolchains()
 ```
 
 ## Usage
 
 Add to `BUILD` file:
 
 ```starlark
-load("@com_github_ebay_rules_ytt//:def.bzl", "ytt")
+load("@rules_ytt//:defs.bzl", "ytt")
+
+# Build an image with rules_docker
+
 load("@io_bazel_rules_docker//go:image.bzl", "go_image")
 
 go_image(
@@ -34,13 +43,26 @@ go_image(
     importpath = "...",
 )
 
+# or with rules_oci
+
+load("@rules_oci//oci:defs.bzl", "oci_image")
+
+oci_image(
+    name = "image",
+    ...
+)
+
+# Generate YAML manifests
+
 ytt(
     name = "manifests",
     srcs = [
         ":base.yaml",
         ":defaults.yaml",
         ":values.yaml",
     ],
+    # or
+    # srcs = glob(["*.yaml"]),
     image = ":image.digest",
 )
 ```
@@ -57,10 +79,6 @@ ytt -f base.yaml -f defaults.yaml -f values.yaml --dangerous-allow-all-symlink-d
 
 Image digest is available inside yaml templates as `data.values.image_digest`.
 
-## Commands
-
-[Here](./ytt.md)
-
 ## LICENSE
 
    Copyright 2023 eBay Inc. Developer: Evgeny Khabarov

WORKSPACE

@@ -1,37 +1,13 @@
-workspace(name = "com_github_ebay_rules_ytt")
+workspace(name = "rules_ytt")
 
-load(":deps.bzl", "ytt_rules_dependencies")
-
-ytt_rules_dependencies()
-
-load("@io_bazel_rules_go//go:deps.bzl",
-  "go_register_toolchains",
-  "go_rules_dependencies",
-)
-
-go_rules_dependencies()
-
-go_register_toolchains(version = "1.20.3")
-
-load("@io_bazel_stardoc//:setup.bzl", "stardoc_repositories")
-
-stardoc_repositories()
-
-load("@bazel_skylib//:workspace.bzl", "bazel_skylib_workspace")
-
-bazel_skylib_workspace()
-
-load("@bazel_gazelle//:deps.bzl", "gazelle_dependencies")
-gazelle_dependencies()
-
-load(
-    "@io_bazel_rules_docker//repositories:repositories.bzl",
-    container_repositories = "repositories",
+load("//ytt:repositories.bzl",
+  "rules_ytt_dependencies",
+  "rules_ytt_internal_dependencies",
+  "ytt_register_toolchains",
 )
 
-container_repositories()
-
-load("@io_bazel_rules_docker//go:image.bzl", _go_image_repos = "repositories")
+rules_ytt_dependencies()
 
-_go_image_repos()
+rules_ytt_internal_dependencies()
 
+ytt_register_toolchains()