docs: Add unused symbols to proper sections
docs: Add unused symbols to proper sections

ylatuya/gstreamer,lovebug356/gstreamer,cablelabs/gstreamer,cablelabs/gstreamer,drothlis/gstreamer,justinjoy/gstreamer,collects/gstreamer,mparis/gstreamer,jpxiong/gstreamer,jpxiong/gstreamer,StreamUtils/gstreamer,cablelabs/gstreamer,drothlis/gstreamer,StreamUtils/gstreamer,ylatuya/gstreamer,ensonic/gstreamer,StreamUtils/gstreamer,centricular/gstreamer,ylatuya/gstreamer,magcius/gstreamer,surround-io/gstreamer,centricular/gstreamer,krieger-od/gstreamer,ahmedammar/platform_external_gst_gstreamer,krieger-od/gstreamer,shelsonjava/gstreamer,lubosz/gstreamer,shelsonjava/gstreamer,drothlis/gstreamer,centricular/gstreamer,justinjoy/gstreamer,ensonic/gstreamer,justinjoy/gstreamer,surround-io/gstreamer,jpxiong/gstreamer,Lachann/gstreamer,Distrotech/gstreamer,surround-io/gstreamer,Distrotech/gstreamer,Distrotech/gstreamer,surround-io/gstreamer,collects/gstreamer,surround-io/gstreamer,cfoch/gstreamer,lubosz/gstreamer,lubosz/gstreamer,lubosz/gstreamer,jpakkane/gstreamer,ensonic/gstreamer,krieger-od/gstreamer,drothlis/gstreamer,Distrotech/gstreamer,krichter722/gstreamer,magcius/gstreamer,justinjoy/gstreamer,Lachann/gstreamer,mparis/gstreamer,ahmedammar/platform_external_gst_gstreamer,StreamUtils/gstreamer,krichter722/gstreamer,ensonic/gstreamer,lovebug356/gstreamer,jpxiong/gstreamer,krieger-od/gstreamer,Lachann/gstreamer,lovebug356/gstreamer,jpakkane/gstreamer,mrchapp/gstreamer,ylatuya/gstreamer,Distrotech/gstreamer,mrchapp/gstreamer,cablelabs/gstreamer,mparis/gstreamer,collects/gstreamer,ylatuya/gstreamer,ahmedammar/platform_external_gst_gstreamer,mparis/gstreamer,krichter722/gstreamer,magcius/gstreamer,jpakkane/gstreamer,mrchapp/gstreamer,Lachann/gstreamer,lubosz/gstreamer,jpakkane/gstreamer,jpakkane/gstreamer,ahmedammar/platform_external_gst_gstreamer,ahmedammar/platform_external_gst_gstreamer,cablelabs/gstreamer,collects/gstreamer,jpxiong/gstreamer,magcius/gstreamer,cfoch/gstreamer,lovebug356/gstreamer,centricular/gstreamer,mparis/gstreamer,krichter722/gstreamer,Lachann/gstreamer,krichter722/gstreamer,ensonic/gstreamer,cfoch/gstreamer,lovebug356/gstreamer,shelsonjava/gstreamer,StreamUtils/gstreamer,drothlis/gstreamer,shelsonjava/gstreamer,krieger-od/gstreamer,centricular/gstreamer,justinjoy/gstreamer,cfoch/gstreamer,shelsonjava/gstreamer,cfoch/gstreamer,mrchapp/gstreamer,collects/gstreamer,mrchapp/gstreamer,magcius/gstreamer