1204

Working example for Write and Read with Python

Now passing numpy array in DefineVariable
autopep8 syntax errors

Issue #330 put get deferred for single values not working

Moved to sync functions
Added exception in EndStep if Perform Puts/Gets is missing

added GetPreferred for stream reading

Heat

Refactored heat transfer example. A config file is now command line a…

Refactored heat transfer example. A config file is now command line argument. Reader's decomposition is also command line argument.

Issue #324 add remove variables and attributes functions in IO

Remove Single variable or attribute
Remove all variables or attributes

Heat

    read_fileonly/ contains the file reader examples,
    read/ contains the streaming version,
    writer and reader is using heat.xml config file from the root directory

Solving issue #320 DeclareIO must be called at least once

If IO object to be used.
InquireIO returns nullptr if DeclareIO not called.
Two calls to DeclareIO with the same name will throw an exception

Reading bp files using stepping mode BeginStep EndStep

Modifying file names

Sst integration

String variable support 

sync with william's changes for h5read/write/mixer

Tweak cmake functions to properly interpret evpath_config output.  Tweak include position to avoid reordering.