Docs: leave out anything besides include/ and src/
Docs: leave out anything besides include/ and src/

Leave out various module implementation detail classes and the whole
gtest & gmock class sets from the docs. Csocket is included meanwhile
it's still exposed in the public API.

Adam-/znc,znc/znc,aarondunlap/znc,BtbN/znc,wolfy1339/znc,Mkaysi/znc,psychon/znc,kashike/znc,GLolol/znc,dgw/znc,znc/znc,Mkaysi/znc,Phansa/znc,wolfy1339/znc,znc/znc,dgw/znc,aarondunlap/znc,Mkaysi/znc,Adam-/znc,dgw/znc,jreese/znc,GLolol/znc,Zarthus/znc,badloop/znc,Mikaela/znc,BtbN/znc,Mikaela/znc,markusj/znc,psychon/znc,evilnet/znc,GLolol/znc,badloop/znc,kashike/znc,Mikaela/znc,jpnurmi/znc,Mkaysi/znc,BtbN/znc,DarthGandalf/znc,DarthGandalf/znc,jreese/znc,elyscape/znc,wolfy1339/znc,evilnet/znc,aarondunlap/znc,kashike/znc,BtbN/znc,kashike/znc,evilnet/znc,jpnurmi/znc,Zarthus/znc,markusj/znc,Adam-/znc,KielBNC/znc,Adam-/znc,kashike/znc,Mikaela/znc,badloop/znc,psychon/znc,dgw/znc,badloop/znc,Phansa/znc,Zarthus/znc,znc/znc,wolfy1339/znc,aarondunlap/znc,Mikaela/znc,Phansa/znc,aarondunlap/znc,jpnurmi/znc,GLolol/znc,BtbN/znc,Mkaysi/znc,jreese/znc,Mikaela/znc,Mikaela/znc,jpnurmi/znc,elyscape/znc,DarthGandalf/znc,GLolol/znc,dgw/znc,markusj/znc,Phansa/znc,badloop/znc,badloop/znc,Phansa/znc,BtbN/znc,elyscape/znc,markusj/znc,Mkaysi/znc,Adam-/znc,KielBNC/znc,jpnurmi/znc,Adam-/znc,KielBNC/znc,GLolol/znc,jreese/znc,elyscape/znc,KielBNC/znc,wolfy1339/znc,jpnurmi/znc,KielBNC/znc,Adam-/znc,markusj/znc,aarondunlap/znc,jpnurmi/znc,Phansa/znc,psychon/znc,aarondunlap/znc,Mkaysi/znc,jreese/znc,Zarthus/znc,psychon/znc,KielBNC/znc,dgw/znc,Zarthus/znc,badloop/znc,Zarthus/znc,elyscape/znc,DarthGandalf/znc,wolfy1339/znc,psychon/znc,elyscape/znc,znc/znc,evilnet/znc,znc/znc,evilnet/znc,DarthGandalf/znc,evilnet/znc,jreese/znc,kashike/znc,DarthGandalf/znc,markusj/znc