feat: Added documentation for OHIF-v3 (#2450)

* Added docs with new screenshots

* Added doc to architecture

* Added documentations to various extension modules

* Added more documentation to modes

* Added docs to managers

* Added docs for services

* Fixed deployment docs

* Added white labelling documentation

* Added i18n docs and measurement export

docs/latest/userManuals/viewer/Language/Language.md

@@ -0,0 +1,12 @@
+# Language
+
+OHIF supports internationalization capabilities and setting the general language
+of the Viewer.
+
+It should be noted that we don't have complete translations for all the components
+and all the languages; however, you can easily add the key value translation pairs
+following developer guides.
+
+Summary of language changing usage can be seen below:
+
+<mark>Upload