This cl does the following things:

0) Implements a skeleton of incident_helper
1) Implements FileSection class which calls incident_helper to parse
   file content to protobuf
2) Adds Kernel Wake Sources to incident.proto and makes it parsed by
   FileSection
3) Adds basic gtests to test FdBuffer, io_utils, FileSection
implementation

Bug: 62923266
Bug: 62926061
Test: manual - push incidentd, incident_helper and incident to my device
      and verify kernel wakeup sources file is able to be parsed.
Change-Id: I2aa6b6158d962ce70e6fa6c8a9c42213a45ff41c
diff --git a/cmds/incident_helper/Android.bp b/cmds/incident_helper/Android.bp
new file mode 100644
index 0000000..3ea823c
--- /dev/null
+++ b/cmds/incident_helper/Android.bp
@@ -0,0 +1,50 @@
+cc_defaults {
+    name: "incident_helper_defaults",
+
+    cflags: [
+        "-Wall",
+        "-Werror",
+        "-g",
+        "-O0"
+    ],
+
+    srcs: [
+        "IncidentHelper.cpp",
+        "strutil.cpp",
+    ],
+
+    shared_libs: [
+        "libbase",
+        "liblog",
+        "libprotobuf-cpp-full",
+        "libutils",
+    ],
+
+    static_libs: [
+        "libplatformprotos",
+    ],
+}
+
+cc_binary {
+    name: "incident_helper",
+    defaults: ["incident_helper_defaults"],
+    srcs: ["main.cpp"],
+}
+
+
+cc_test {
+    name: "incident_helper_test",
+    defaults: ["incident_helper_defaults"],
+
+    srcs: [
+        "tests/IncidentHelper_test.cpp",
+    ],
+
+    data: [
+        "testdata/*",
+    ],
+
+    static_libs: [
+        "libgmock",
+    ],
+}
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