Add a simple Bazel module and build file.

BUILD.bazel

@@ -0,0 +1,12 @@
+cc_library(
+    name = "fast_double_parser",
+    hdrs = ["include/fast_double_parser.h"],
+    strip_include_prefix = "include",
+    visibility = ["//visibility:public"],
+)
+
+cc_test(
+    name = "unit",
+    srcs = ["tests/unit.cpp"],
+    deps = [":fast_double_parser"],
+)

MODULE.bazel

@@ -0,0 +1,7 @@
+"""fast_double_parser: 4x faster than strtod."""
+
+module(
+    name = "fast_double_parser",
+    version = "0.8.0",
+    compatibility_level = 0,
+)

README.md

@@ -169,6 +169,7 @@ double-conv    243.90 MB/s
 - [There is a Rust port](https://github.com/ezrosent/frawk/tree/master/src/runtime/float_parse).
 - [There is a Java port](https://github.com/wrandelshofer/FastDoubleParser).
 - [There is a C# port](https://github.com/CarlVerret/csFastFloat).
+- [Bazel Central Registry](https://registry.bazel.build/modules/fast_double_parser).
 
 ## Credit