Misc scaling updates

Added base physical power/crit to character sheet.

Clarified/fix descriptions of several talents.

Updated Tactical tables for some inscription talents:  Infusion: Healing, Infusion: Wild, Infusion: Primal,  Infusion: Movement, Infusion: Sun,  Infusion: Heroism, Infusion: Insidious Poison, Infusion: Wild Growth, Taint: Devourer

Relentless Pursuit:  Minimum detrimental effect duration reduction 2 turns.  Cooldown scales to a limit.  Works for all save_for_effects types.

Summon: Fails gracefully if no summons are possible.  (Prevents NPC's from wasting turns.)

Rotting Disease: Rescaled damage.

Decrepitute Disease: Rescaled damage.

Weakness Disease: Rescaled damage.

Void Blast: Fix tactical table.

Lay Web: Updated scaling for detect/disarm power.  Web weakens over time.

Crush: Fix tactical table.

Sever Lifeline: Correct tactical table, description.

Gift of Amakthel: Fails gracefully if no summons are possible.  (Prevents NPC's from wasting turns.)

keepsake Blindside: updated tactical table.

Frost Grap: Updated tactical table.

Cripple: Nerfed speed penalty (< 50%).

Mobile Defense: Bonus defense limited < +100%.

See merge request !375