sprites: make all the powerup spheres the same size and offset

Fixes #134

buildcfg.txt

@@ -2314,10 +2314,10 @@ MISLA8A2	16	7
 MISLB0	28	29
 MISLC0	31	34
 MISLD0	38	49
-PINSA0	14	38
-PINSB0	14	38
-PINSC0	14	38
-PINSD0	14	38
+PINSA0	12	32
+PINSB0	12	32
+PINSC0	12	32
+PINSD0	12	32
 PISFA0  -145    -60
 PISGA0  -128    -100
 PISGB0  -109    -83
@@ -2406,10 +2406,10 @@ SHTGC0	-27	-17
 SHTGD0	-19	-37
 SHTFA0	-145	-93
 SHTFB0	-148	-99
-SOULA0	14	39
-SOULB0	14	39
-SOULC0	14	39
-SOULD0	14	39
+SOULA0	12	32
+SOULB0	12	32
+SOULC0	12	32
+SOULD0	12	32
 STIMA0	7	15
 SUITA0	17	61
 TFOGA0 25 59
@@ -2521,10 +2521,10 @@ GOR2A0	12	83
 GOR3A0	12	83
 GOR4A0	19	67
 GOR5A0	12	51
-PINVA0	11	23
-PINVB0	11	23
-PINVC0	11	23
-PINVD0	11	23
+PINVA0	12	32
+PINVB0	12	32
+PINVC0	12	32
+PINVD0	12	32
 PLASA0	29	16
 PLSEA0	11	11
 PLSEB0	15	14