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The readmod functions verify now the dimension of the model file. Therefore IFOS will abort, if the model file is to small or too big.
Moreover, the write_matrix_disk function is used to write the models to disk.

Bevore the FWI loop the observd data was read in and was time filtered. I think this ist not necessary, as the observed data is read in for the calculation of the residuals again.
Therefore, I removed the code to save calculation time.

IFOS is now able to read in input files, that are formatted according the JSON standard. Nevertheless, the old files will work as well.

In addition, I fixed some compiler warnings.

Conflicts:
	src/exchange_par.c
	src/write_par.c

Changed naming convention of individual spatial tapers for gradients, updated to usage with WORKFLOW

Merge STF_SH into development

INVMAT - > FORWARD_ONLY
INVMAT1 - > PARAMETERIZATION

Adding a few gitignore files to smooth the GIT workflow

! IFOS -> IFOS2D !
- New make targes is IFOS2D
- Generated binary is IFOS2D

Adding 2D to IFOS to indicate, that it is our 2D FWI Code.

Renaming of observed seismograms:
SEIS_FILE_z.su -> SEIS_FILE_vz.su
SEIS_FILE_x.su -> SEIS_FILE_vx.su
SEIS_FILE_y.su -> SEIS_FILE_vy.su

Either rename your observed data, or (if synthetic) rerun forward modeling, so IFOS will create observed data, which is correctly named.

Renaming:
QUELLART     ->  SOURCE_SHAPE
QUELLTYP     ->  SOURCE_TYPE
QUELLTYPB   ->  ADJOINT_TYPE
DAMPING       ->  VPPML

! This commit renames DENISE to IFOS !
Keep care and update all of your self written shell scripts etc.
The make target is 'IFOS' (capital letters).
The resulting binary is called 'IFOS' as well.

Changed output of L2 to STDOUT if WAVETYPE != 3