Misc Improvements (#7)

* get rid of optional<ptr> -> double indirection

* more optional cleanup

* fix

* add more render pixel type options

* towards different views

* missing virtual declaration of ShowImage

* fix runtime

* init image view factory

* fix build

Render Image close button re-enable

add readme

init documentation

use awesomeDoxygen

ci build docs

install doxygen

id token permission

add pages write permission

cmake/awesomeDoxygen.cmake

@@ -0,0 +1,10 @@
+include(FetchContent)
+FetchContent_Declare(
+    doxygen-awesome-css
+    URL https://github.com/jothepro/doxygen-awesome-css/archive/refs/heads/main.zip
+)
+FetchContent_MakeAvailable(doxygen-awesome-css)
+
+# Save the location the files were cloned into
+# This allows us to get the path to doxygen-awesome.css
+FetchContent_GetProperties(doxygen-awesome-css SOURCE_DIR AWESOME_CSS_DIR)