-FADBAD++ added in third party
-interpolation added in src - includes both functors and interpolation
-cmakefiles edited to add interpolation in build process
-created unit test for interpolation
-functor implicit and interpolant implicit created
functors_test moved to unit_tests, *.kdev4 added to .gitignore
functor implicit implementation
-interface of interpolation classes improved
-computation of error of the interpolation and its test done
-statistics done, not in test yet
fix - missing cmath library
Directives for constants, make only P1 interpolation.
Statistics of interpolation evaluation improved and tested.

- create structure for statistic end getter function
- make unit test for statistics
Automatic reinterpolation; better comments.

- automatic table remake according to statistics
- improved comments
Functor templates improved, new interpolant constructor defined.
- functor copy constructor removed and replaced by set_param_from_functor function
- interpolant constructor takes functor as parameter
Functor classes improved and better commented.
- classes renamed
- documentation improved
- parameters setting improved (no n_param function, friend class defined)
Interpolant classes improved.
- use statistics from outside, no automatization
- pair DiffValue instead of struct der introduced
- other small changes..
Extrapolation, error computation and documentation improved.

- add extrapolation in evaluation functions and test in unit_test
- put enumerations (Extrapolation and Check) in struct to clean namespace
- documentataion of interpolant classes improved
- add higher order norm to compute error (still not working properly and not tested)
Compute interpolation error.

- compute error, use middle values to next step of auto interpolation
- enable other kinds of interpolation
- documentation improved
- unit tests added - speed tests and other small changes
- directive constants removed - static members from now on
Test optimalization of interpolation.

- only test commit
Separate interpolation sources into its own library.

- add add_library for interpolation in cmakelist
- reason: not building whole library in unit test
Interpolation unit test - benchmarks.

- use TEST_F in benchmark on creation of interpolant
- add benchmark on interpolation of hydrology functions FK and FQ
Interpolation optimalization.

- remove unnecessary arrays (nodes, coefficients)
- benchmark test of val() gives stable results
- evaluation is approx. 14% faster
- simplify interpolation creation only to precomputation of values
- documentation improved