Other DataMan library dependencies must be in LD_LIBRARY_PATH

Added BP1Writer pgindex and metadata functionality. Need to hook it with
BPWriter engine 

Added complex support in ADIOS class and DataMan engine and example for
DataManWriter

Modified Makefile.libs and Makefiles in ./examples/hello/datamanReader
and ./examples/hello/datamanWriter

Need to set DATAMAN_LOC in those makefiles for local DataMan
installation.

Need to set DATAMAN_LOCATION in buildDataMan.sh for local DataMan
installation.

Run ./buildDataman.sh see contents for detailed info

compound type example

Testing

see examples/hello/dataman and examples/hello/writer for working
examples

Testing github branching

Run ./buildTest.sh to build and run Vis engine example

Corrected bugs in Group in GetDimensions functions

To do:
List of methods in Data
Attribute index function in BP1writer
BP1 metadata handling in Close

BP1 Dump utility

Added function in Engine that checks for name uniqueness among File I/O
transports

Added static set of FileTransports in core/Support class

To do:

Format transports using BP class 
Add list of methods in data buffers
Add function to write attribute index

BP Dump utility for POSIX transport

Corrected bug by including cmath in adiosFunctions.cpp

Removed helloWriter.cpp and helloDataMan.cpp, now using
helloDataMan_OOP.cpp and helloWriter_OOP.cpp

Prevented from compiling and running hello examples
Makefile in dataman needed to link with libpthread -lpthread

Reduced number of functions
Created BP1.h for common functionality and structs (with potential
reader)
Moved common functions to adiosFunctions adiosTemplates and BP1.h

To do:

Attribute var index
PG var index
Max Buffer size and transport handling

Tested memory leaks with valgrind for simple example
Verifying if variable index is written correctly

Added ./src/format/BP1Writer.cpp

To do:
Need to test for array index and payload write

Working on writing variables to bp format

Implemented and tested hello world for dataman:
examples/hello/data/helloDataMan_OOP.cpp

Updated README.md

Now comparing type and GetType<T> first

Propagate GetType<T> in Group, Engine and Support classes

To do:

Test ./examples/hello/writer/helloWriter_OOP.cpp

BP1Writer: Continue working on functions to write data and metadata

Group: added Dims alias and SetDimensions function, so dimensions can be built from a Var List put in an std::initializer_list<Var>

Added a bool flag in Variable to know if it is a dimension


To do:
Allow for passing values at DefineVariable

rather than handlers

Group&, Method& and the polymorphic std::shared_ptr<Engine> will be
returned by DeclareGroup, DeclareMethod and Open.

Added Group functions DefineVariable to be a template
Now using adios::Var when creating a variable (still a variable name
string).

Uses more C++ OO + templates features

Compiled and tested with ./examples/hello/helloWriter_OOP.cpp , mpi and
no-mpi versions