docs: Migrate Docs to RST format and new dir docs/

docs: Migrate Docs to RST format and new dir docs/

Migrate all existing VSPERF documentation to a new directory called
docs/ and convert to ReStructuredText format. It's recommended that any
doc changes in the future are tested with: http://rst.ninjs.org/.

Change-Id: I18aa574b1259986502bde4ceef1fae7c6a5c1f33
JIRA: VSPERF-60

Signed-off-by: Maryam Tahhan <maryam.tahhan@intel.com>
Reviewed-by: Al Morton <acmorton@att.com>
Reviewed-by: Eugene Snider <Eugene.Snider@huawei.com>
Reviewed-by: Gurpreet Singh <gurpreet.singh@spirent.com>
Reviewed-by: Tv Rao <tv.rao@freescale.com