Create ``Server`` module.

Manually unroll the loops,  performance is 2x compared to ``dot``, and
can beat MATLAB's ``u'*v`` method. 

One thing can be sure that ``u'*v`` in MATLAB is optimized and did not
performanc tranpose at all.
 
 
 Benchmark will be pasted later in issues.
 
Signed-off-by: Yimin <zhongym8903@gmail.com>