Bug fixes

• introduced subplots
• Improved setup.py robustness when cython not available
• made available compression writing argument from write
• resample() robustness improvement : added function to clean data group having master non evenly increasing
• corrected channel name appending when doublon and SIBlock available
• added possibility to write arrays in mdf 4
• fixed bug with CEBlock and mdf3
• fixed bug reading mdf3 data unaligned
• fixed bug with channel structures or bus logging and duplicated names