Make ConfigError inherit SoftwareContainerError
Make ConfigError inherit SoftwareContainerError

Signed-off-by: Joakim Gross <252a2611efec4b00fafd78abb80b692484753d75@pelagicore.com>

frznlogic/softwarecontainer,Pelagicore/softwarecontainer,Pelagicore/softwarecontainer,DunderRoffe/softwarecontainer,kursatkobya/softwarecontainer,tobsan/softwarecontainer,kursatkobya/softwarecontainer,DunderRoffe/softwarecontainer,frznlogic/softwarecontainer,tobsan/softwarecontainer,thenor/softwarecontainer,kursatkobya/softwarecontainer,DunderRoffe/softwarecontainer,kursatkobya/softwarecontainer,frznlogic/softwarecontainer,tobsan/softwarecontainer,thenor/softwarecontainer,tobsan/softwarecontainer,thenor/softwarecontainer,Pelagicore/softwarecontainer,frznlogic/softwarecontainer,thenor/softwarecontainer,Pelagicore/softwarecontainer,DunderRoffe/softwarecontainer