imageio-lite: add simple tiff import/export (#9654)

- Add new library to do tiff import/export.  This library is
   different from imageio in that it doesn't pull in additional
   3p libraries.  This reduces binary size and reduces
   complexity in maintaining the android build (which depends
   on libs/viewer).
 - The encode() code has been moved from libs/viewer to
   libs/imageio-lite
 - encode/decode only handles the simplest case of uncompressed
   rgba.

android/filament-utils-android/CMakeLists.txt

@@ -22,6 +22,10 @@ add_library(image STATIC IMPORTED)
 set_target_properties(image PROPERTIES IMPORTED_LOCATION
         ${FILAMENT_DIR}/lib/${ANDROID_ABI}/libimage.a)
 
+add_library(imageio-lite STATIC IMPORTED)
+set_target_properties(imageio-lite PROPERTIES IMPORTED_LOCATION
+        ${FILAMENT_DIR}/lib/${ANDROID_ABI}/libimageio-lite.a)
+
 add_library(ktxreader STATIC IMPORTED)
 set_target_properties(ktxreader PROPERTIES IMPORTED_LOCATION
         ${FILAMENT_DIR}/lib/${ANDROID_ABI}/libktxreader.a)
@@ -85,6 +89,7 @@ target_link_libraries(filament-utils-jni
         PRIVATE camutils
         PRIVATE iblprefilter
         PRIVATE image
+        PRIVATE imageio-lite
         PRIVATE filament-jni
         PRIVATE ktxreader
         PRIVATE viewer