Squashed commit of the following:

// It started as branch for adding UTF-8 support, but ended differently

commit 3615313dcba1e70a7fec91df1c2f022a99bfd09a
Author: Tomáš Stefan <ts@stdin.cz>
Date:   Sat Mar 10 21:06:23 2018 +0100

    read all xref sections

    add fn parse_word and replace with it other specific ones
    store all xref entries for one object (different generation number)
    add fn skip_array

commit 98ecb7ab1cf17465e295d47b1bb2f12d62c28d78
Author: Tomáš Stefan <ts@stdin.cz>
Date:   Thu Mar 8 17:11:18 2018 +0100

    CMake improvements, Build instructions

commit f85f88dbee46453b6475269274734998e85e470d
Author: Tomáš Stefan <ts@stdin.cz>
Date:   Wed Mar 7 16:56:02 2018 +0100

    Minor corrections

    - add missing semicolon on WIN
    - no colour on platforms other than unix
    - signed/unsigned comparison corrections
    - processing fread in loop

commit 2513508e6397af93d0d89783e56744105ef7546a
Author: Tomáš Stefan <ts@stdin.cz>
Date:   Wed Mar 7 14:36:15 2018 +0100

    working on Windows support

commit 05fdbc0c01a25af0c357659504a42dbb5c2b85c9
Author: Tomáš Stefan <ts@stdin.cz>
Date:   Wed Mar 7 00:24:58 2018 +0100

    UTF-8 paths, CMake support

    utf-8 path support
    CMake support
    open file on Windows - work in progress

commit 7e8f520d0b269eb566a6187ab0f2bd64a4b04925
Author: Tomáš Stefan <ts@stdin.cz>
Date:   Tue Mar 6 17:28:08 2018 +0100

    remove char_t, using UTF-8 narrow strings