bug: redefine version number library: 0.8.0->0.6.0

[mckaygerhard]

the usage of the library was 0.7.X qt5 branch.. but only 0.8.0 was merged these works, so the repository now said 0.8.0 as library version number.. this version must be below of the mlde version main repo..

• 1. redefine library version to 0.6.0 so wen set release update to 0.7.0
• 2. redefine soname v ersion in readme and document this problem

all of this due moonlighde are in 0.7.0 from 0.6.0