* avoid re-declaration of constant variables
* Replace pthreads critical section with std::mutex
* ci - better naming
* cmake - increase minimum version to 3.11. Use project DESCRIPTION
* fix - do not treat string::find() return type as bool
* remove conditions that were always true
* remove condition that were always false
* Remove EXV_HAVE_GMTIME_R which is not used anymore
* pixelWidth_ was inherited from Exiv2::Image
The width & height variables in the TiffImage class need to be mutable
to be able to change their values on the getters pixelHeight() and
pixelWidth() ... Do not ask me why ...
* Remove superfluous if
* pvs:V766 item with identical key added already
* pvs:V730 not all members were initialized (time)
* pvs:V730 not all members are initialized
* pvs:v668 no point in testing pointer against null after new
* pvs:V1048 variable assigned the same value
* replace c-style dynamic vector with std one
* pvs:547 fakeData is always true
* Remove useless constructor in derived class
* pvs:V690 modern way to disable copy-ctor
* Replace malloc/free with new/delete. No need to check for null
* pvs:V1028 cast operands and not result
* Remove custom MIN/MAX functions
* pvs:V595 pointer used before verified against null
* pvs: index used before being checked
* pvs:V1028 possible overflow. Cast operands
* pvs:v575 potential null pointer passed to other functions
* pvs:V547 deal with always true/false expressions
* pvs:V560 part of conditional expressions always false or true
* pvs:V701 possible break in realloc -> move to std::vector
* Make some classes 'final'
* Replace sprintf with std::to_string()
* fix compilation on windows
