Fix an issue with cmd apparently freezing on startup (resolves #124).

Fix ANSICON environment variable when there's no console (resolves #127).

• Fix crash when some programs start (bug during hooking);
• properly hook SetCurrentConsoleFontEx.

• Fix return code on Vista (#123);
• verify DLL exists before injection.

• Fix wrapping when the buffer was greater than the window;
• fix running a program directly via ansicon (always inject, even if GUI or excluded);
• fix redirecting ansicon to NUL;
• fix last error when hooked functions failed.

• Better support for unusual PEs;
• workaround Win10 1803 console bug;
• scroll in new lines with the default attribute.

Fix hang for processes that just return from the entry point.

Fixes for #109 (Windows 10), #110 (less) and #111 (git).

Fix CR & CRM; find the nearest color when using index or RGB.

More sequences and should be a bit faster.