Minor bug fixes for 0.28.0

[tuomount]

Collecting here minor bug fixes which are encountered in test games.

• Repair Module armor value is not calculated
• Improve valuation of scientific achievements
• Lower the scoring for building when there are enough of production type, which space race workes do less 100% efficiency.
• Raise the limit of scientific achievement project for 30 star years instead of 24.
• Increase number of workers, even workers do work efficiently but production is low.
• Probe Mk2 had wrong speed in design.
• Combat thursters did not actually increased regular speed.
• AI does not always built "lab" on each planet
• If AI has extra credit it might start diplomatic trade instead of border crossing.
• If AI now checks if it is more useful to buy/trade/sell tech instead of random.
• Improve AI's valuation of tech in diplomatic trades.
• Fix issue where Graviton Ripper increases opponent armor.
• Adds missing repair effect in combat
• AI should value more on colony ships
• Orbitals was shown wrong size on starmap if zoomed out or in
• Smaller orbital cannot be built if bigger one exists.
• Fix issue where AI could not win by Diplomacy.
• Fix issue where Galactic Olympic cancelation is in news until that voting is over.
• Fix issue where human player declares war against pirates when bombing their planet.
• Fix stats view missing sometimes few lines from top of the grid.
• Changes Research view have tech tree instead of tech list.
• Fixes possible very rare NPE from combat.
• Remove duplicate lines from end story texts.