Add the gifn-apply test tool

Add a tool that checks out the repositories mentioned in
a git-if-needed patch series, runs gif-it-needed, and performs
some checks on its operation. This tool will eventually be used in
a Zuul test job for this repository.

Change-Id: Id02fb7c21f5ab34d9639bf845fcc3961d929b13b
diff --git a/tools/git-if-needed/python/config/ruff-most/pyproject.toml b/tools/git-if-needed/python/config/ruff-most/pyproject.toml
new file mode 100644
index 0000000..26587b8
--- /dev/null
+++ b/tools/git-if-needed/python/config/ruff-most/pyproject.toml
@@ -0,0 +1,54 @@
+# SPDX-FileCopyrightText: StorPool <support@storpool.com>
+# SPDX-License-Identifier: BSD-2-Clause
+
+[tool.ruff]
+extend = "../ruff-base/pyproject.toml"
+# The list of linters from Ruff 0.0.253
+select = [
+  "A",
+  "ANN",
+  "ARG",
+  "B",
+  "BLE",
+  "C4",
+  "C90",
+  "COM",
+  "D",
+  "DJ",
+  "DTZ",
+  "E",
+  "EM",
+  "ERA",
+  "EXE",
+  "F",
+  "FBT",
+  "G",
+  "I",
+  "ICN",
+  "INP",
+  "ISC",
+  "N",
+  "NPY",
+  "PD",
+  "PGH",
+  "PIE",
+  "PL",
+  "PT",
+  "PTH",
+  "PYI",
+  "Q",
+  "RET",
+  "RSE",
+  "RUF",
+  "S",
+  "SIM",
+  "SLF",
+  "T10",
+  "T20",
+  "TCH",
+  "TID",
+  "TRY",
+  "UP",
+  "W",
+  "YTT",
+]