Statistics of case running

Statistics of case running

summary:
-----------------
1. Add struct RStatistics to count passed number(passCount), failed number(failCount), finished run number(finishrun).

2. Print statistics line , if the termial is too narrow, doesn't print it:
  ......
  test_load_program_from_bin()    [SUCCESS]
  profiling_exec()    [SUCCESS]
  enqueue_copy_buf()    [SUCCESS]
   [run/total: 656/656]      pass: 629; fail: 25; pass rate: 0.961890

3. If case crashes, count it as failed, add the function to show statistic summary.

4. When all cases finished, list a summary like follows:
summary:
----------
  total: 656
  run: 656
  pass: 629
  fail: 25
  pass rate: 0.961890

5. If ./utest_run &> log, the log will be a little messy, tring the following command to analyse the log:

  sed 's/\r/\n/g' log | egrep "\w*\(\)" | sed -e 's/\s//g'

  After analysed:
  -----------------
......
builtin_minmag_float2()[SUCCESS]
builtin_minmag_float4()[SUCCESS]
builtin_minmag_float8()[SUCCESS]
builtin_minmag_float16()[SUCCESS]
builtin_nextafter_float()[FAILED]
builtin_nextafter_float2()[FAILED]
builtin_nextafter_float4()[FAILED]
......

6. Fix one issue, print out the crashed case name.

7. Delete the debug line in utests/compiler_basic_arithmetic.cpp, which
   output the kernel name.

8. Define function statistics() in struct UTest, which called by "utest_run -a/-c/-n".
   We just call this function to run each case, and print the statistics line.

Reviewed-by: "Song, Ruiling" <ruiling.song@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>