feat: demo flow/settle/drive timing on dance-phrase and squat (L2)

Author: a-baran-orhan

spec/examples/dance-phrase.posecode

@@ -2,15 +2,15 @@ posecode exercise "Dance phrase (8-count)"
   rig humanoid
   pose start = standing
 
-  step "1-2 - breath, arms to second" 2s ease-in-out:
+  step "1-2 - breath, arms to second" 2s flow:
     hips: rotate-out 25
     shoulders: abduct 80
     elbows: flex 16
     spine: extend 4
     ground-lock: feet
     cue "Turn out, open the arms to second, lift through the crown"
 
-  step "3-4 - demi-plié" 2s ease-in-out:
+  step "3-4 - demi-plié" 2s flow:
     hips: flex 18
     knees: flex 50
     ankles: plantarflex 50
@@ -19,7 +19,7 @@ posecode exercise "Dance phrase (8-count)"
     ground-lock: feet
     cue "Bend the knees over the toes, arms round down through first"
 
-  step "5-6 - relevé, arms en haut" 2s ease-in-out:
+  step "5-6 - relevé, arms en haut" 2s flow:
     hips: flex 0
     knees: flex 0
     ankles: plantarflex 28
@@ -29,7 +29,7 @@ posecode exercise "Dance phrase (8-count)"
     ground-lock: feet
     cue "Press up to relevé and lift the arms into a frame overhead"
 
-  step "7-8 - close" 2s ease-out:
+  step "7-8 - close" 2s settle:
     ankles: plantarflex 0
     hips: rotate-out 0
     shoulders: flex 0

spec/examples/squat.posecode

@@ -2,7 +2,7 @@ posecode exercise "Body-weight squat"
   rig humanoid
   pose start = standing
 
-  step "Descend" 1.6s ease-in-out:
+  step "Descend" 1.6s settle:
     hips: flex 80
     knees: flex 95
     ankles: plantarflex 50
@@ -13,7 +13,7 @@ posecode exercise "Body-weight squat"
     ground-lock: feet
     cue "Sit the hips back, chest proud, knees track over the toes"
 
-  step "Drive up" 1.2s ease-out:
+  step "Drive up" 1.2s drive:
     hips: flex 0
     knees: flex 0
     ankles: plantarflex 0