Merge the Xcode-10.1 Bazel work into master

.bazel-version

@@ -0,0 +1 @@
+0.24.1

.gitignore

@@ -1,6 +1,5 @@
 # Bluepill Specific file
-Bluepill-runner/BPVersion.h
-Bluepill-cli/BPVersion.h
+bp/BPVersion.h
 result.txt
 
 # Xcode
@@ -68,3 +67,6 @@ fastlane/test_output
 # https://github.com/johnno1962/injectionforxcode
 
 iOSInjectionProject/
+
+# Bazel dirs
+bazel-*

BUILD.bazel

@@ -0,0 +1,11 @@
+genrule(
+    name = "bp_version",
+    srcs = [],
+    outs = ["BPVersion.h"],
+    cmd = "./$(location scripts/bpversion.sh) \"$@\"",
+    local = True,
+    stamp = 1,
+    tags = ["local", "no-cache"],
+    tools = ["scripts/bpversion.sh"],
+    visibility = ["//visibility:public"],
+)