GameDB: Various gshw fixes.

Add full mipmap plus ps2 trilinear to Snoopy vs. The Red Baron.
Improves ground textures to match sw renderer.

Add full recommended blending level to Blokus Club with Bumpy Trot.
Fixes water reflections.

Add full mipmap plus ps2 trilinear and medium recommended blending level to Gallop Racer 2003: A New Breed.
Blending improves lighting, maximum blending is needed for full accuracy.
Mipmap + trilinear, improves ground textures to match sw renderer.

Add full mipmap plus ps2 trilinear

bin/resources/GameIndex.yaml

@@ -1186,6 +1186,9 @@ SCAJ-20068:
 SCAJ-20069:
   name: "Gallop Racer - Lucky 7"
   region: "NTSC-Unk"
+  gsHWFixes:
+    mipmap: 2 # Mipmap + trilinear, improves ground textures to match sw renderer.
+    trilinearFiltering: 1
 SCAJ-20070:
   name: "Star Ocean 3 [Director's Cut]"
   region: "NTSC-Unk"
@@ -16714,6 +16717,10 @@ SLES-51893:
 SLES-51896:
   name: "Attheraces Presents Gallop Racer"
   region: "PAL-E"
+  gsHWFixes:
+    recommendedBlendingLevel: 2 # Improves lighting, maximum blending is needed for full accuracy.
+    mipmap: 2 # Mipmap + trilinear, improves ground textures to match sw renderer.
+    trilinearFiltering: 1
 SLES-51897:
   name: "The Simpsons - Hit & Run"
   name-sort: "Simpsons, The - Hit & Run"
@@ -19504,6 +19511,9 @@ SLES-53009:
 SLES-53011:
   name: "Gallop Racer 2"
   region: "PAL-E"
+  gsHWFixes:
+    mipmap: 2 # Mipmap + trilinear, improves ground textures to match sw renderer.
+    trilinearFiltering: 1
 SLES-53012:
   name: "Tenchu - Fatal Shadows"
   region: "PAL-E"
@@ -48685,6 +48695,8 @@ SLPS-20443:
   name-sort: ぶろっくすくらぶ withばんぴーとろっと
   name-en: "Blokus Club with Bumpy Trot"
   region: "NTSC-J"
+  gsHWFixes:
+    recommendedBlendingLevel: 4 # Fixes water reflections.
 SLPS-20444:
   name: SIMPLE2000シリーズ Vol.90 THE お姉チャンバラ2
   name-sort: SIMPLE2000しりーず Vol.90 THE おあねちゃんばら2
@@ -50048,6 +50060,10 @@ SLPS-25177:
   name-sort: Gallop Racer 6 -Revolution-
   name-en: "Gallop Racer 6 - Revolution"
   region: "NTSC-J"
+  gsHWFixes:
+    recommendedBlendingLevel: 2 # Improves lighting, maximum blending is needed for full accuracy.
+    mipmap: 2 # Mipmap + trilinear, improves ground textures to match sw renderer.
+    trilinearFiltering: 1
 SLPS-25178:
   name: アルゴスの戦士
   name-sort: あるごすのせんし
@@ -50842,6 +50858,9 @@ SLPS-25333:
   name-sort: ぎゃろっぷれーさー らっきー7
   name-en: "Gallop Racer Lucky 7"
   region: "NTSC-J"
+  gsHWFixes:
+    mipmap: 2 # Mipmap + trilinear, improves ground textures to match sw renderer.
+    trilinearFiltering: 1
 SLPS-25334:
   name: シャドウハーツ II [通常版] [ディスク1/2]
   name-sort: しゃどうはーつ II [つうじょうばん] [でぃすく1/2]
@@ -55179,6 +55198,10 @@ SLPS-73415:
   name-sort: Gallop Racer 6 -Revolution- PS2 the Best
   name-en: "Gallop Racer 6 - Revolution [PS2 The Best]"
   region: "NTSC-J"
+  gsHWFixes:
+    recommendedBlendingLevel: 2 # Improves lighting, maximum blending is needed for full accuracy.
+    mipmap: 2 # Mipmap + trilinear, improves ground textures to match sw renderer.
+    trilinearFiltering: 1
 SLPS-73416:
   name: スーパーロボット大戦IMPACT PS2 the Best
   name-sort: すーぱーろぼっとたいせんIMPACT PS2 the Best
@@ -58328,6 +58351,10 @@ SLUS-20661:
 SLUS-20662:
   name: "Gallop Racer 2003 - A New Breed"
   region: "NTSC-U"
+  gsHWFixes:
+    recommendedBlendingLevel: 2 # Improves lighting, maximum blending is needed for full accuracy.
+    mipmap: 2 # Mipmap + trilinear, improves ground textures to match sw renderer.
+    trilinearFiltering: 1
 SLUS-20663:
   name: "Naval Ops - Warship Gunner"
   region: "NTSC-U"
@@ -60349,6 +60376,9 @@ SLUS-21030:
 SLUS-21031:
   name: "Gallop Racer 2004"
   region: "NTSC-U"
+  gsHWFixes:
+    mipmap: 2 # Mipmap + trilinear, improves ground textures to match sw renderer.
+    trilinearFiltering: 1
 SLUS-21032:
   name: "Marc Ecko's Getting Up - Contents Under Pressure"
   region: "NTSC-U"
@@ -62412,6 +62442,8 @@ SLUS-21380:
   clampModes:
     vuClampMode: 3 # Fixes bad textures and missing geometry.
   gsHWFixes:
+    mipmap: 2 # Mipmap + trilinear, improves ground textures to match sw renderer.
+    trilinearFiltering: 1
     halfPixelOffset: 2 # Fixes fog line.
   patches:
     213DCAC9: