Updating smileih5.py

[VinithSamson11]

No description provided.

[VinithSamson11]

Code integrity is tested using run-tests.py (passed all tests)
Detailed Doc-stings were added for main functions.
And code's performance and working were tested using jupyter notebook.

[skuschel]

Great thanks! I have a few minor remarks:

• Please add your name to the to top of the file in the comment
• Please reorder the functions, so its easier to keep track what depneds on what. The order should be as in https://github.com/skuschel/postpic/blob/master/postpic/datareader/openPMDh5.py
  1. __init__ funciton
  2. any static methods (the ones decorated with @staticmethod)
  3. # --- Level 0 methods ---
  4. # --- Level 1 methods ---
  5. # --- Level 2 methods ---. Please leave those comments in, even if there are not functions in this group. For example there are no Level 0 functions being overriden, but there are level 1 functions currently at the end of the file.
• rename getAMmodes to _listAMmodes.
• rename getExpanded to _getExpanded
• Please comment here which smilei and which happi version you are using

[skuschel]

Oh and please update the Changelog.md file under current master that a reader for smilei version whatever has been added including a link to the smilei repo

[VinithSamson11]

The Changes you mentioned have been made. The version I have used is smilei v4.8.

[VinithSamson11]

The smileih5.py file were tested with latest SmileiPIC (v5.0) & Happi version. The test data were dumped from Smilei version v5.0 and the the output values are compared with latest corresponding version of Happi. The percentage errors are in the order of ~10^-13 %.