build system and module refactoring + simple histogram scratch (#20)

* scratch adding histogram to image views

Histograms should come from some sort of histogram service. This is
currently just a POC.

* custom logger implementation w/o spdlog

* missing cmake file

* fix tests

* use operator<< over direct stream exposure

* rm print header

* add threading test + refactor towards interface libraries

omits the need for =target_include_directories= calls /everywhere/

* rm print header

* rm constexpr

* templated thread_pool

* fix doxyfile

* default enable doc building

* czi reader refactor

* rm erroneous include expression

* clang-format

* single lib include with PUBLIC visibility

* compile imgui stdlib

* clang format

* documentation update

centralize `LogLevelToString` to `ILog.hpp`

update docs and examples

lib/utilities/CMakeLists.txt

@@ -1,14 +1,17 @@
 set(UTILSLIBNAME pixelariumutilslib)
 
 set(UTILSLIBSRC
-  ILog.hpp
-  SpdLogger.hpp
+  include/ILog.hpp
+  include/SpdLogger.hpp
+  include/PixelariumLogger.hpp
+  include/simple_thread_pool.hpp
   SpdLogger.cpp
-  simple_thread_pool.hpp
-  simple_thread_pool.cpp)
+  PixelariumLogger.cpp)
 
 add_library(${UTILSLIBNAME} STATIC ${UTILSLIBSRC})
 
+add_library(pixelarium::lib::utilities_static ALIAS ${UTILSLIBNAME})
+
 # won't work
 # target_compile_options(${UTILSLIBNAME}
 #   PRIVATE
@@ -16,7 +19,9 @@ add_library(${UTILSLIBNAME} STATIC ${UTILSLIBSRC})
 #   "$<$<CXX_COMPILER_ID:MSVC>:/utf-8>")
 
 target_include_directories(${UTILSLIBNAME}
+  INTERFACE
+  PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include
   PRIVATE ${spdlog_DIR}/include)
 
 target_link_libraries(${UTILSLIBNAME}
-  PRIVATE spdlog::spdlog_header_only)
+  PUBLIC spdlog::spdlog_header_only)