libgeotiff

[smanders]

resolves externpro/externpro#213
resolves externpro/externpro#205

[smanders]

failure because the tiff (aka wxtiff) library is also needed... not just the tiff headers

[smanders]

link error on linux-arm64

/opt/rh/gcc-toolset-9/root/usr/bin/ld: test/Debug/libgeotiff_test: hidden symbol `_ZNSt10filesystem9_Dir_base7advanceEbRSt10error_code' isn't defined

externpro/externpro#161 gcc9, linux/arm64, c++17 std::filesystem not compatible

[smanders]

build error on windows also appears to be related to using std::filesystem

D:\a\buildpro\buildpro\test\libgeotiff.cpp(21,5): error C2679: binary '=': no operator found which takes a right-hand operand of type 'std::filesystem::path' (or there is no acceptable conversion) [D:\a\buildpro\buildpro\_bld-Windows\test\toda.vcxproj]