New release with clustering functions

New features and improvements.

Updates in v0.6.5
SETUP:

1. Added requirements for tslearn and minisom mainly for the clustering module .

CLUSTERING:

1. Added the new module.
2. Added clustering of velocity depth profiles with kmean and som, in two functions.

PLOTTING:

1. Added get_color_cycle() to help assign colors in plotting using matplotlib.
2. Cleaned up unused old NOISEPY functions.
3. Function to plot vmodel clustering results.

NOISE:

1. Optimized merge_chunks() to use less time getting the time range.

UTILS:

1. Added option to use pattern in get_filelist().