Add remainder of N++ messages

[dail8859]

• [ ] NPPM_GETCURRENTSCINTILLA - lParam is int*
• [ ] NPPM_GETCURRENTLANGTYPE - lParam is int*
• [ ] NPPM_SETCURRENTLANGTYPE - value is carried in lParam instead of wParam
• [ ] NPPM_GETOPENFILENAMES - wParam is TCHAR**
• [ ] NPPM_GETSESSIONFILES - wParam is TCHAR**
• [ ] NPPM_SAVESESSION - lParam is a struct
• [ ] NPPM_GETOPENFILENAMESPRIMARY - wParam is TCHAR**
• [ ] NPPM_GETOPENFILENAMESSECOND - wParam is TCHAR**
• [ ] NPPM_ENCODESCI
• [ ] NPPM_DECODESCI
• [x] NPPM_GETBUFFERENCODING
• [x] NPPM_SETBUFFERENCODING
• [ ] NPPM_ALLOCATESUPPORTED
• [ ] NPPM_ALLOCATECMDID
• [ ] NPPM_ALLOCATEMARKER
• [ ] NPPM_MODELESSDIALOG - Probably not applicable
• [ ] NPPM_CREATESCINTILLAHANDLE - Probably not applicable
• [ ] NPPM_DESTROYSCINTILLAHANDLE - Probably not applicable
• [ ] NPPM_GETNBUSERLANG - Probably not applicable
• [ ] NPPM_GETMENUHANDLE - Probably not applicable
• [ ] NPPM_DMMSHOW - Probably not applicable
• [ ] NPPM_DMMHIDE - Probably not applicable
• [ ] NPPM_DMMUPDATEDISPINFO - Probably not applicable
• [ ] NPPM_DMMREGASDCKDLG - Probably not applicable
• [ ] NPPM_ADDTOOLBARICON - Probably not applicable
• [ ] NPPM_DMMGETPLUGINHWNDBYNAME - Probably not applicable
• [ ] NPPM_GETENABLETHEMETEXTUREFUNC - Probably not applicable
• [ ] NPPM_MSGTOPLUGIN - Probably not applicable
• [ ] NPPM_GETSHORTCUTBYCMDID - Probably not applicable
• [ ] NPPM_SETMENUITEMCHECK - Probably not applicable
• [x] NPPM_GETNBOPENFILES
• [x] NPPM_GETNBSESSIONFILES
• [x] NPPM_SAVECURRENTSESSION
• [x] NPPM_GETCURRENTDOCINDEX
• [x] NPPM_SETSTATUSBAR
• [x] NPPM_ACTIVATEDOC
• [x] NPPM_LAUNCHFINDINFILESDLG
• [x] NPPM_LOADSESSION
• [x] NPPM_DMMVIEWOTHERTAB
• [x] NPPM_RELOADFILE
• [x] NPPM_SWITCHTOFILE
• [x] NPPM_SAVECURRENTFILE
• [x] NPPM_SAVEALLFILES
• [x] NPPM_GETWINDOWSVERSION
• [x] NPPM_MAKECURRENTBUFFERDIRTY
• [x] NPPM_GETPLUGINSCONFIGDIR
• [x] NPPM_MENUCOMMAND
• [x] NPPM_TRIGGERTABBARCONTEXTMENU
• [x] NPPM_GETNPPVERSION
• [x] NPPM_HIDETABBAR
• [x] NPPM_ISTABBARHIDDEN
• [x] NPPM_GETPOSFROMBUFFERID
• [x] NPPM_GETFULLPATHFROMBUFFERID
• [x] NPPM_GETBUFFERIDFROMPOS
• [x] NPPM_GETCURRENTBUFFERID
• [x] NPPM_RELOADBUFFERID
• [x] NPPM_GETBUFFERLANGTYPE
• [x] NPPM_SETBUFFERLANGTYPE
• [x] NPPM_GETBUFFERFORMAT
• [x] NPPM_SETBUFFERFORMAT
• [x] NPPM_HIDETOOLBAR
• [x] NPPM_ISTOOLBARHIDDEN
• [x] NPPM_HIDEMENU
• [x] NPPM_ISMENUHIDDEN
• [x] NPPM_HIDESTATUSBAR
• [x] NPPM_ISSTATUSBARHIDDEN
• [x] NPPM_DOOPEN
• [x] NPPM_SAVECURRENTFILEAS
• [x] NPPM_GETCURRENTNATIVELANGENCODING
• [x] NPPM_GETLANGUAGENAME
• [x] NPPM_GETLANGUAGEDESC
• [x] NPPM_SHOWDOCSWITCHER
• [x] NPPM_ISDOCSWITCHERSHOWN
• [x] NPPM_GETAPPDATAPLUGINSALLOWED
• [x] NPPM_GETCURRENTVIEW
• [x] NPPM_DOCSWITCHERDISABLECOLUMN
• [x] NPPM_GETEDITORDEFAULTFOREGROUNDCOLOR
• [x] NPPM_GETEDITORDEFAULTBACKGROUNDCOLOR
• [x] NPPM_SETSMOOTHFONT
• [x] NPPM_SETEDITORBORDEREDGE
• [x] NPPM_SAVEFILE
• [x] NPPM_DISABLEAUTOUPDATE
• [x] NPPM_GETFULLCURRENTPATH
• [x] NPPM_GETCURRENTDIRECTORY
• [x] NPPM_GETFILENAME
• [x] NPPM_GETNAMEPART
• [x] NPPM_GETEXTPART
• [x] NPPM_GETCURRENTWORD
• [x] NPPM_GETNPPDIRECTORY
• [x] NPPM_GETCURRENTLINE
• [x] NPPM_GETCURRENTCOLUMN
• [x] NPPM_GETNPPFULLFILEPATH