lodash: Add flattenDepth() for LoDashStatic (#10013)
lodash: Add flattenDepth() for LoDashStatic (#10013)

* lodash: Add flattenDepth() for LoDashStatic

* lodash(flattenDepth): Add optional tag to depth & declare module

jimthedev/DefinitelyTyped,zuzusik/DefinitelyTyped,schmuli/DefinitelyTyped,hellopao/DefinitelyTyped,pocesar/DefinitelyTyped,isman-usoh/DefinitelyTyped,chrismbarr/DefinitelyTyped,rolandzwaga/DefinitelyTyped,benishouga/DefinitelyTyped,arusakov/DefinitelyTyped,hellopao/DefinitelyTyped,slavomirvojacek/adbrain-typescript-definitions,AbraaoAlves/DefinitelyTyped,HPFOD/DefinitelyTyped,pocesar/DefinitelyTyped,jimthedev/DefinitelyTyped,paulmorphy/DefinitelyTyped,arusakov/DefinitelyTyped,donnut/DefinitelyTyped,ashwinr/DefinitelyTyped,syuilo/DefinitelyTyped,Penryn/DefinitelyTyped,smrq/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,psnider/DefinitelyTyped,martinduparc/DefinitelyTyped,GiedriusGrabauskas/DefinitelyTyped,schmuli/DefinitelyTyped,benishouga/DefinitelyTyped,damianog/DefinitelyTyped,pocesar/DefinitelyTyped,AgentME/DefinitelyTyped,QuatroCode/DefinitelyTyped,shlomiassaf/DefinitelyTyped,georgemarshall/DefinitelyTyped,yuit/DefinitelyTyped,arusakov/DefinitelyTyped,AgentME/DefinitelyTyped,arma-gast/DefinitelyTyped,aciccarello/DefinitelyTyped,minodisk/DefinitelyTyped,jimthedev/DefinitelyTyped,benishouga/DefinitelyTyped,alexdresko/DefinitelyTyped,borisyankov/DefinitelyTyped,hellopao/DefinitelyTyped,chrismbarr/DefinitelyTyped,QuatroCode/DefinitelyTyped,mcliment/DefinitelyTyped,johan-gorter/DefinitelyTyped,gcastre/DefinitelyTyped,danfma/DefinitelyTyped,newclear/DefinitelyTyped,progre/DefinitelyTyped,benliddicott/DefinitelyTyped,mattblang/DefinitelyTyped,schmuli/DefinitelyTyped,aciccarello/DefinitelyTyped,use-strict/DefinitelyTyped,laurentiustamate94/DefinitelyTyped,DzmitryDulko/DefinitelyTyped,minodisk/DefinitelyTyped,markogresak/DefinitelyTyped,florentpoujol/DefinitelyTyped,newclear/DefinitelyTyped,chrootsu/DefinitelyTyped,syuilo/DefinitelyTyped,zuzusik/DefinitelyTyped,abner/DefinitelyTyped,slavomirvojacek/adbrain-typescript-definitions,Ptival/DefinitelyTyped,AgentME/DefinitelyTyped,nycdotnet/DefinitelyTyped,georgemarshall/DefinitelyTyped,zuzusik/DefinitelyTyped,alexdresko/DefinitelyTyped,xStrom/DefinitelyTyped,progre/DefinitelyTyped,scriby/DefinitelyTyped,AgentME/DefinitelyTyped,psnider/DefinitelyTyped,one-pieces/DefinitelyTyped,ashwinr/DefinitelyTyped,dsebastien/DefinitelyTyped,sledorze/DefinitelyTyped,martinduparc/DefinitelyTyped,chrootsu/DefinitelyTyped,alvarorahul/DefinitelyTyped,sledorze/DefinitelyTyped,abbasmhd/DefinitelyTyped,slavomirvojacek/DefinitelyTyped,alvarorahul/DefinitelyTyped,nainslie/DefinitelyTyped,jraymakers/DefinitelyTyped,magny/DefinitelyTyped,jraymakers/DefinitelyTyped,dsebastien/DefinitelyTyped,Penryn/DefinitelyTyped,gandjustas/DefinitelyTyped,YousefED/DefinitelyTyped,xStrom/DefinitelyTyped,paulmorphy/DefinitelyTyped,HPFOD/DefinitelyTyped,abbasmhd/DefinitelyTyped,magny/DefinitelyTyped,donnut/DefinitelyTyped,florentpoujol/DefinitelyTyped,daptiv/DefinitelyTyped,mcrawshaw/DefinitelyTyped,mcrawshaw/DefinitelyTyped,Ptival/DefinitelyTyped,psnider/DefinitelyTyped,martinduparc/DefinitelyTyped,slavomirvojacek/DefinitelyTyped,rcchen/DefinitelyTyped,aciccarello/DefinitelyTyped,rcchen/DefinitelyTyped,nainslie/DefinitelyTyped,use-strict/DefinitelyTyped,gandjustas/DefinitelyTyped,isman-usoh/DefinitelyTyped,gcastre/DefinitelyTyped,borisyankov/DefinitelyTyped,micurs/DefinitelyTyped,georgemarshall/DefinitelyTyped,subash-a/DefinitelyTyped,YousefED/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,amir-arad/DefinitelyTyped,shlomiassaf/DefinitelyTyped,damianog/DefinitelyTyped,amanmahajan7/DefinitelyTyped,scriby/DefinitelyTyped,nycdotnet/DefinitelyTyped,GiedriusGrabauskas/DefinitelyTyped,yuit/DefinitelyTyped,mattblang/DefinitelyTyped,johan-gorter/DefinitelyTyped,danfma/DefinitelyTyped,arma-gast/DefinitelyTyped,subash-a/DefinitelyTyped,DzmitryDulko/DefinitelyTyped,abner/DefinitelyTyped,rolandzwaga/DefinitelyTyped,smrq/DefinitelyTyped,amanmahajan7/DefinitelyTyped,georgemarshall/DefinitelyTyped