Sync from wiki/ in tiko-lang 2fee8042f: interfaces (Interface, Inherits, TryCast, tutorial, category), Property rewrite, TIKO_* env vars (32 files)
tiko-lang wiki commits since c8d2b2ea2:
7c402e398 wiki: Property -- auto-properties, property blocks, any number of indices, static and namespace properties, byref write-back
0ad026aef wiki: interfaces -- Interfaces Tutorial, Category-Interfaces, Interface, Class, Implements, Inherits, TryCast
1d0ef9227 env: every environment variable is TIKO_*, not TKO_*
2fee8042f wiki: SysWin-RichEdit-TOM -- José Roca's GitHub edit (d5da495), copied back
Sync from wiki/ in tiko-lang 5e1db0b62: #pragma push_macro, std/* import-order note gone
5e1db0b62 tkControls docs: drop "import std/* first on Linux" -- the import order no longer matters
b1e30e220 pp: #pragma push_macro / pop_macro; sys/posix constants survive an importer's crt macros
13726df53 wiki: Notepad2 Tutorial, the Notepad Tutorial's tpad on tkControls
70745a768 book: new Chapter 2 -- Editors: tkEdit and the Language Server; Chapters 2-35 become 3-36
Sync from wiki/ in tiko-lang 8416ec2f: remove eleven FreeBASIC-manual categories and the pages they list, License corrections
Sync from wiki/ in tiko-lang b0456bd0: describe tiko only -- no FBC-Modern, fbc history, decision numbers, dates, hashes or local paths
Sync from wiki/ in tiko-lang 59b54100: Using C Libraries tutorials, #cinclude and #foreignlib pages rewritten