Rewritten cqrepkg usage based on cqpkg.
Further implementation of cqrepkg (read/rewrite).

* Fixed detecting correct options.
* Reading required properties and filter roots
* Rewriting basic properties
* Extracting correct nodes/metadata from original zip
* Clean up of temp files
* BUT: not rewriting filters in new package
* BUT: not writing/compressing final zip file
Preparation for filters rewriting.
Added cqrepkg description to README
cqrepkg - additional implementation

* adding new subfilters in scope of changing filters
* filter.xml file correct minification
* new ZIP file saving
Full implementation.

* Shellcheck fixes. Method extraction
* Applying filters
* Fixed defult zip file name
* Reimplemneted filter matchings and replacements
Added required unzip utility to cygwin packages
CQM-160 Use different archive tools when present

Implemented options:
* p7zip
* jar
* unzip/zip
CQM-159 Use -F and -P for getting raw filters/props
Code cleanup

* Removed old TODO comments.
* Removed debug variables
Added/updated usage examples for new options
Updated additional validation for options and file

* input file is checked for existance
* options -P/-F are checked for separate usages
Fixed p7zip/7za partial extraction of original zip
Extracted sh func that extracts required zip files
Fixed detecting incorrect zip CQ package files.
Fixed Mac OS X problem with readlink util.
Dropped support for in-place sed edits

* Compatibility problems between GNU/BSD sed versions (for -i option)
Fixes for xBSD and simplified processing

- Getting properties using macro function
- Replacing properties using macro function
- Sanitize of filter.xml file (new requirement)
- Matching filters into separate lines (new requirement)
- Reading SED commands from stdin instead of passing them (BSD fix)
- Logic for adding new filters without include/exclude directives
  in case of matching tree on higher level (many low-level filters affected
  together)
Fixed SED append command for BSD
Hide unzip warnings on xBSD systems.