improved performance and memory consumption of the fingerprint feature

Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild

rlImport: upwards traversal start in the current directory
rlImport: support '.' to import lib.sh from the current directory
rlImport: can handle libraries required by the fmf_id in different forms than (url, name)
only. Also the path attribute is considered
fingerprint: an asserts fingerprint and phases fingerprint is computed
fixed a check for os-release file existence
fixed LOG_LEVEL usage
removed dependency on selinuxenabled
fixed a few typos, thanks to jwakely@fedoraproject.org

Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild

cleanup rlRun_LOG files at rlJournalEnd
close journal in rlDie - generate journal.xml at that moment
implemented functions rlIsOS, rlIsOSLike, rlIsOSVersion, and rlIsRHELLike
rlAssertRequired can now handle versioned dependencies
new functions rlCheckRerquired, rlCheckRecommended, and rlCheckDependencies

Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild

rlCheckRequirements is now able to check also versions requirements

fixed rlServiceDisable if called without rlServiceEnable beforehand
few internal fixes

rebased yash to version 1.2, fixes the backtick iterpretation
docs fixes, by Štěpán Němec <snemec@redhat.com>

rlImport --all imports only required libraries, not recommend
implemented chkconfig fallback to systemctl
fixed `make test` test suite execution

TestResults state indicator
profiling code
rebased yash to 1.1
fixed rlAssertLesser
fixed failed library load name logging

ability to parse fmf id references
ability the use simpler library name - library(foo), {url: '../foo.git', name: '/'}, meaming the library is n the root folder
ability put library even deeper in the tree - library(foo/path/to/the/library), {url: '../foo.git', name: '/path/to/the/library'}
rebased yash to 1.0
and few more minor fixes

Rebase to the laster upstream
better and more consistent search for libraries
ability to parse yaml files including main.fmf and metadata.yaml

Rebase to the latest upstream
improvements to libraries search
docs update
some optimizations
IFS fixes
support for curl 7.29.0
prefer curl over wget
silence status of service in rlService{Start,Stop,Restore} functions (#…
TESTPACKAGE variable to force package name (#54)