Add g_spawnshield_blockdamage cvar: "how much spawn shield protects you from...

Add g_spawnshield_blockdamage cvar: "how much spawn shield protects you from damage (1 = full protection)"
2 jobs for terencehill/g_spawnshield_blockdamage
Status Job ID Name Coverage
  Test
passed #631082
test_sv_game

00:01:29

passed #631081
test_sv_unit

00:00:44