Replace Argument class with CLI11

CLI11 is one of the most commonly use argument parser in OpenBMC.
The Argument class will be replaced with CLI11 and the
argument.(h/c)pp file will be removed.

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: Ibff60a19d3ff9209ca70889acc9e6aec4a8d4fca
diff --git a/subprojects/CLI11.wrap b/subprojects/CLI11.wrap
new file mode 100644
index 0000000..2e5a95b
--- /dev/null
+++ b/subprojects/CLI11.wrap
@@ -0,0 +1,6 @@
+[wrap-git]
+url = https://github.com/CLIUtils/CLI11.git
+revision = HEAD
+
+[provide]
+CLI11 = CLI11_dep