add cdm_VisIt.h/C
Add API method set_OutputGrid to set whether to output grid file
Add API method WriteGridFile to output grid file and delete API method set_OutputGrid
Merge pull request #4 from avr-aics-riken/advance_develop_plot3d

Advance develop plot3d confirmed
Accept pull request from develop_plot3d
Bug fix DFI_Finfo.GuideCell
Bug fix : write_XYZ(), write_GridData(), write_DataRecord(), read_DataRecord()
Remove temporary array setting in the case of mismatch of guide cells
Modify write_DataRecord in cdm_DFI_BOV
Change D_CDM_EXT_BOV to bov in if statement for reading FileFormat
Change bov to D_CDM_EXT_BOV in if statement for reading FileFormat and define D_CDM_EXT_BOV_DATAFILE as dat
Remove constraint on number of variables in method interp_coarse
Merge pull request #7 from avr-aics-riken/advance_develop_plot3d

Advance develop plot3d
Bug fix, release 0.6.0
Add ResultFormat at VisIt section, release 0.6.1
Merge master into branch advance_develop