Add the IBM Design Language qualitative color sequences

src/cmap/data/ibm/__init__.py

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+ibm_light = [
+    [105, 41, 196],  # Purple 70
+    [17, 146, 232],  # Cyan 50
+    [0, 93, 93],  # Teal 70
+    [159, 24, 83],  # Magenta 70
+    [250, 77, 86],  # Red 50
+    [87, 4, 8],  # Red 90
+    [25, 128, 56],  # Green 60
+    [0, 45, 156],  # Blue 80
+    [238, 83, 139],  # Magenta 50
+    [178, 134, 0],  # Yellow 50
+    [0, 157, 154],  # Teal 50
+    [1, 39, 73],  # Cyan 90
+    [138, 56, 0],  # Orange 70
+    [165, 110, 255],  # Purple 50
+]
+
+ibm_dark = [
+    [138, 63, 252],  # Purple 60
+    [51, 177, 255],  # Cyan 40
+    [0, 125, 121],  # Teal 60
+    [255, 126, 182],  # Magenta 40
+    [250, 77, 86],  # Red 50
+    [255, 241, 241],  # Red 10
+    [111, 220, 140],  # Green 30
+    [69, 137, 255],  # Blue 50
+    [209, 39, 113],  # Magenta 60
+    [210, 161, 6],  # Yellow 40
+    [8, 189, 186],  # Teal 40
+    [186, 230, 255],  # Cyan 20
+    [186, 78, 0],  # Orange 60
+    [212, 187, 255],  # Purple 30
+]

src/cmap/data/ibm/record.json

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+{
+  "authors": [],
+  "category": "qualitative",
+  "colormaps": {
+    "ibm_dark": {
+      "data": "cmap.data.ibm:ibm_dark",
+      "interpolation": false
+    },
+    "ibm_light": {
+      "data": "cmap.data.ibm:ibm_light",
+      "interpolation": false
+    }
+  },
+  "info": "Color palettes for data visualizations from the IBM Design Language. Designed to maximize accessibility and harmony within a page.",
+  "namespace": "ibm",
+  "source": "https://carbondesignsystem.com/data-visualization/color-palettes/#categorical-palettes"
+}