Remove cairo code from skia-util.cpp
Issue #30. Initialize device config structure using memset.
mask: Use gl surface instead of image surface to optimize test performance.

ref: https://github.com/SRA-SiliconValley/caskbench/issues/17
Initialization fixes to avert crashes

ref: https://github.com/SRA-SiliconValley/caskbench/issues/29
Merge pull request #42 from SRA-SiliconValley/Issue_30

Issue #30. Initialize device config structure using memset.
Add max runtime, median run time and standard deviation in json output.

ref: https://github.com/SRA-SiliconValley/caskbench/issues/35
Use memset for Process option data structure.

ref: https://github.com/SRA-SiliconValley/caskbench/issues/31
Added command line option for setting seed value for RNG.

ref: https://github.com/SRA-SiliconValley/caskbench/issues/32
Issue#52Break caskbench_context stuff out to its own file
Merge pull request #54 from SRA-SiliconValley/Issue_52

Break caskbench_context stuff out to its own file

ref: https://github.com/SRA-SiliconValley/caskbench/issues/52
Merge pull request #56 from SRA-SiliconValley/Issue28

Remove cairo code from skia-util.cpp

ref: https://github.com/SRA-SiliconValley/caskbench/issues/28
Issue #34. print avg fps values in console and json output.
Issue #39. Command line option to specify list of space separated tests to run.
Issue #50. Removed hardcoded number of shapes.
Added gradients, bitmap pattern support in cairo-shapes.cpp
Made cairo fill to use its functions from cairo-shapes and removed unwanted code.
Stroke settings are updated properly in cairo and skia shapes file.
Minor issue fixes which produced incorrect output with respect to cairo and skia shapes.
Merge pull request #45 from SRA-SiliconValley/Issue_34

Print fps values instead of test runtimes.

ref: https://github.com/SRA-SiliconValley/caskbench/issues/34
Merge pull request #53 from SRA-SiliconValley/Issue_39

Command line option to specify list of space separated tests to run.

ref: https://github.com/SRA-SiliconValley/caskbench/issues/39