add bazel build rule for SelfTest (#2857)

This PR primarily accomplishes two tasks:

1) It adds MODULE.bazel.lock to the .gitignore file.
2) It includes a Bazel build rule for SelfTest, which can be utilized with the command bazel test //tests:catch2_self_test.

.gitignore

@@ -27,6 +27,7 @@ benchmark-dir
 .conan/test_package/build
 .conan/test_package/CMakeUserPresets.json
 bazel-*
+MODULE.bazel.lock
 build-fuzzers
 debug-build
 .vscode

tests/BUILD.bazel

@@ -0,0 +1,83 @@
+load("@rules_cc//cc:defs.bzl", "cc_library", "cc_test")
+
+package(default_visibility = ["//visibility:public"])
+
+cc_library(
+    name = "catch2_self_test_helper",
+    srcs = ["SelfTest/helpers/parse_test_spec.cpp"],
+    hdrs = [
+        "SelfTest/helpers/parse_test_spec.hpp",
+        "SelfTest/helpers/range_test_helpers.hpp",
+        "SelfTest/helpers/type_with_lit_0_comparisons.hpp",
+    ],
+    includes = ["SelfTest"],
+    deps = [
+        "//:catch2",
+    ],
+)
+
+cc_test(
+    name = "catch2_self_test",
+    size = "small",
+    srcs = [
+        "SelfTest/IntrospectiveTests/Algorithms.tests.cpp",
+        "SelfTest/IntrospectiveTests/Clara.tests.cpp",
+        "SelfTest/IntrospectiveTests/CmdLine.tests.cpp",
+        "SelfTest/IntrospectiveTests/CmdLineHelpers.tests.cpp",
+        "SelfTest/IntrospectiveTests/ColourImpl.tests.cpp",
+        "SelfTest/IntrospectiveTests/Details.tests.cpp",
+        "SelfTest/IntrospectiveTests/FloatingPoint.tests.cpp",
+        "SelfTest/IntrospectiveTests/GeneratorsImpl.tests.cpp",
+        "SelfTest/IntrospectiveTests/Integer.tests.cpp",
+        "SelfTest/IntrospectiveTests/InternalBenchmark.tests.cpp",
+        "SelfTest/IntrospectiveTests/Parse.tests.cpp",
+        "SelfTest/IntrospectiveTests/PartTracker.tests.cpp",
+        "SelfTest/IntrospectiveTests/RandomNumberGeneration.tests.cpp",
+        "SelfTest/IntrospectiveTests/Reporters.tests.cpp",
+        "SelfTest/IntrospectiveTests/Sharding.tests.cpp",
+        "SelfTest/IntrospectiveTests/Stream.tests.cpp",
+        "SelfTest/IntrospectiveTests/String.tests.cpp",
+        "SelfTest/IntrospectiveTests/StringManip.tests.cpp",
+        "SelfTest/IntrospectiveTests/Tag.tests.cpp",
+        "SelfTest/IntrospectiveTests/TestCaseInfoHasher.tests.cpp",
+        "SelfTest/IntrospectiveTests/TestSpec.tests.cpp",
+        "SelfTest/IntrospectiveTests/TestSpecParser.tests.cpp",
+        "SelfTest/IntrospectiveTests/TextFlow.tests.cpp",
+        "SelfTest/IntrospectiveTests/ToString.tests.cpp",
+        "SelfTest/IntrospectiveTests/Traits.tests.cpp",
+        "SelfTest/IntrospectiveTests/UniquePtr.tests.cpp",
+        "SelfTest/IntrospectiveTests/Xml.tests.cpp",
+        "SelfTest/TestRegistrations.cpp",
+        "SelfTest/TimingTests/Sleep.tests.cpp",
+        "SelfTest/UsageTests/Approx.tests.cpp",
+        "SelfTest/UsageTests/BDD.tests.cpp",
+        "SelfTest/UsageTests/Benchmark.tests.cpp",
+        "SelfTest/UsageTests/Class.tests.cpp",
+        "SelfTest/UsageTests/Compilation.tests.cpp",
+        "SelfTest/UsageTests/Condition.tests.cpp",
+        "SelfTest/UsageTests/Decomposition.tests.cpp",
+        "SelfTest/UsageTests/EnumToString.tests.cpp",
+        "SelfTest/UsageTests/Exception.tests.cpp",
+        "SelfTest/UsageTests/Generators.tests.cpp",
+        "SelfTest/UsageTests/Matchers.tests.cpp",
+        "SelfTest/UsageTests/MatchersRanges.tests.cpp",
+        "SelfTest/UsageTests/Message.tests.cpp",
+        "SelfTest/UsageTests/Misc.tests.cpp",
+        "SelfTest/UsageTests/ToStringByte.tests.cpp",
+        "SelfTest/UsageTests/ToStringChrono.tests.cpp",
+        "SelfTest/UsageTests/ToStringGeneral.tests.cpp",
+        "SelfTest/UsageTests/ToStringOptional.tests.cpp",
+        "SelfTest/UsageTests/ToStringPair.tests.cpp",
+        "SelfTest/UsageTests/ToStringTuple.tests.cpp",
+        "SelfTest/UsageTests/ToStringVariant.tests.cpp",
+        "SelfTest/UsageTests/ToStringVector.tests.cpp",
+        "SelfTest/UsageTests/ToStringWhich.tests.cpp",
+        "SelfTest/UsageTests/Tricky.tests.cpp",
+        "SelfTest/UsageTests/VariadicMacros.tests.cpp",
+    ],
+    deps = [
+        ":catch2_self_test_helper",
+        "//:catch2",
+        "//:catch2_main",
+    ],
+)