Make `Object::to_string` virtual
Make `Object::to_string` virtual

Allows to override printing via C++, not only via script.

vnen/godot,BastiaanOlij/godot,pkowal1982/godot,josempans/godot,Zylann/godot,Valentactive/godot,honix/godot,BastiaanOlij/godot,firefly2442/godot,Valentactive/godot,Faless/godot,vnen/godot,godotengine/godot,akien-mga/godot,sanikoyes/godot,firefly2442/godot,Shockblast/godot,firefly2442/godot,godotengine/godot,firefly2442/godot,Valentactive/godot,BastiaanOlij/godot,Zylann/godot,Faless/godot,godotengine/godot,ZuBsPaCe/godot,guilhermefelipecgs/godot,josempans/godot,Valentactive/godot,godotengine/godot,Shockblast/godot,vkbsb/godot,BastiaanOlij/godot,Shockblast/godot,pkowal1982/godot,vnen/godot,sanikoyes/godot,vkbsb/godot,Zylann/godot,Valentactive/godot,firefly2442/godot,ZuBsPaCe/godot,Valentactive/godot,guilhermefelipecgs/godot,Faless/godot,firefly2442/godot,Valentactive/godot,Shockblast/godot,DmitriySalnikov/godot,MarianoGnu/godot,Shockblast/godot,sanikoyes/godot,Shockblast/godot,ZuBsPaCe/godot,DmitriySalnikov/godot,Zylann/godot,akien-mga/godot,josempans/godot,godotengine/godot,Zylann/godot,guilhermefelipecgs/godot,ZuBsPaCe/godot,honix/godot,sanikoyes/godot,Zylann/godot,Shockblast/godot,vkbsb/godot,josempans/godot,BastiaanOlij/godot,MarianoGnu/godot,sanikoyes/godot,Valentactive/godot,guilhermefelipecgs/godot,Zylann/godot,Faless/godot,pkowal1982/godot,Faless/godot,ZuBsPaCe/godot,vnen/godot,BastiaanOlij/godot,MarianoGnu/godot,MarianoGnu/godot,firefly2442/godot,guilhermefelipecgs/godot,sanikoyes/godot,akien-mga/godot,vnen/godot,godotengine/godot,godotengine/godot,guilhermefelipecgs/godot,vkbsb/godot,pkowal1982/godot,MarianoGnu/godot,honix/godot,honix/godot,vnen/godot,Shockblast/godot,honix/godot,godotengine/godot,akien-mga/godot,MarianoGnu/godot,DmitriySalnikov/godot,DmitriySalnikov/godot,ZuBsPaCe/godot,guilhermefelipecgs/godot,vkbsb/godot,pkowal1982/godot,Zylann/godot,vkbsb/godot,josempans/godot,MarianoGnu/godot,akien-mga/godot,MarianoGnu/godot,josempans/godot,vkbsb/godot,honix/godot,josempans/godot,vnen/godot,Faless/godot,akien-mga/godot,DmitriySalnikov/godot,firefly2442/godot,Faless/godot,DmitriySalnikov/godot,vkbsb/godot,akien-mga/godot,sanikoyes/godot,Faless/godot,pkowal1982/godot,pkowal1982/godot,sanikoyes/godot,pkowal1982/godot,akien-mga/godot,BastiaanOlij/godot,ZuBsPaCe/godot,DmitriySalnikov/godot,ZuBsPaCe/godot,BastiaanOlij/godot,guilhermefelipecgs/godot,vnen/godot,josempans/godot