v1.2.0

1. Improve annotation
2. Add condition and cutoff for TimiGeneNetwork
3. Replace inter-cell interaction with cell-cell interaction
4. Improve TimiCOX: replace for loop with apply for default computing, add parallel option. Reduce 30-50% computation time
5. Update example folder: the usage of TimiCOX
6. Update data folder: remove redundant example data