add sequence cfg files of Robot RGB and YUV444 in ./cfg/per-sequence/ folder

cfg/per-sequence/Robot_444.cfg

+#======== File I/O ===============
+InputFile                     : sc_robot_1280x720_30_8bit_300_444.yuv
+InputBitDepth                 : 8           # Input bitdepth
+InputChromaFormat             : 444         # Ratio of luminance to chrominance samples
+FrameRate                     : 30          # Frame Rate per second
+FrameSkip                     : 0           # Number of frames to be skipped in input
+SourceWidth                   : 1280        # Input  frame width
+SourceHeight                  : 720         # Input  frame height
+FramesToBeEncoded             : 300         # Number of frames to be coded
+
+Level                         : 6.2

cfg/per-sequence/Robot_RGB.cfg

+#======== File I/O ===============
+InputFile                     : sc_robot_1280x720_30_8bit_300.rgb
+InputBitDepth                 : 8           # Input bitdepth
+InputChromaFormat             : 444         # Ratio of luminance to chrominance samples
+FrameRate                     : 30          # Frame Rate per second
+FrameSkip                     : 0           # Number of frames to be skipped in input
+SourceWidth                   : 1280        # Input  frame width
+SourceHeight                  : 720         # Input  frame height
+FramesToBeEncoded             : 300         # Number of frames to be coded
+InputColourSpaceConvert       : RGBtoGBR    # Non-normative colour space conversion to apply to input video
+SNRInternalColourSpace        : 1           # Evaluate SNRs in GBR order
+OutputInternalColourSpace     : 0           # Convert recon output back to RGB order. Use --OutputColourSpaceConvert GBRtoRGB on decoder to produce a matching output file.
+
+Level                         : 6.2