Aestimo 3 combined PR

[sblisesivdin]

There are many corrections and cleaning efforts in this PR. Some of them can be listed as:

• New argument parser. Users can use -h for help, -v for version and latest package information.
• aestimo.py is removed. Only aestimo_eh.py can be used now. Its name is changed to aestimo.py.
• StructureForm() is redesigned.
• New argument -d. Without using of this arg, aestimo will only calculate and write results to the output folder. No figures are shown.
• Save log and all output at the same folder named input file
• Logging is always on, removed from config.
• Input files can be executed from any folder. Therefore, it is removed from the config file.
• Config file is simplified.
• Cython support is removed. Aestimo is a 1D solver. Therefore, simulations took only few minutes to finish. We do not need to run it with cython.

[lgtm-com[bot]]

This pull request introduces 20 alerts and fixes 15 when merging 650daf3fcc4453f5e25f5847cedd675e65482977 into 6d64d034fa485a308a413b26eb30ca868a39d5f5 - view on LGTM.com

new alerts:

• 9 for Variable defined multiple times
• 5 for Unused import
• 3 for Unused local variable
• 2 for Mismatch in multiple assignment
• 1 for Duplicate key in dict literal

fixed alerts:

• 9 for Variable defined multiple times
• 3 for Unused local variable
• 1 for `__eq__` not overridden when adding attributes
• 1 for Missing call to `__init__` during object initialization
• 1 for Comparison of constants