Add an overview and initial development guidelines. Restructured
the doc for a better readabiltiy and easier review, and per the
previous review feedback. The TODOs will be addressed iteratively.
Related #13775
Signed-off-by: Sahdev Zala <spzala@us.ibm.com>
`go install` is the recommended way to build and install packages in
module mode. `go get` should be used with the -d flag to adjust the
current module's dependencies without building packages, and use of
`go get` to build and install packages is deprecated. In a future
release, the -d flag will always be enabled.
Refer to https://go.dev/doc/go1.16.
Signed-off-by: Benjamin Wang <wachao@vmware.com>