Add candlestick-chart icon/bar-chart-big variants (#1320)

* Add `candlestick-chart` icon

* Add `bar-chart-big` alternate icon

* Add `bar-chart-horizontal-big` alternate icon

* Refine `bar-chart-big` icons

icons/bar-chart-big.json

@@ -0,0 +1,11 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "statistics",
+    "diagram",
+    "graph"
+  ],
+  "categories": [
+    "charts"
+  ]
+}

icons/bar-chart-big.svg

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+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M3 3v18h18" />
+  <rect width="4" height="7" x="7" y="10" rx="1" />
+  <rect width="4" height="12" x="15" y="5" rx="1" />
+</svg>

icons/bar-chart-horizontal-big.json

@@ -0,0 +1,11 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "statistics",
+    "diagram",
+    "graph"
+  ],
+  "categories": [
+    "charts"
+  ]
+}

icons/bar-chart-horizontal-big.svg

@@ -0,0 +1,15 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M3 3v18h18" />
+  <rect width="12" height="4" x="7" y="5" rx="1" />
+  <rect width="7" height="4" x="7" y="13" rx="1" />
+</svg>

icons/candlestick-chart.json

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+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "trading",
+    "trader",
+    "financial",
+    "markets",
+    "portfolio",
+    "assets",
+    "prices",
+    "value",
+    "valuation",
+    "commodities",
+    "currencies",
+    "currency",
+    "exchange",
+    "hedge fund",
+    "statistics",
+    "diagram",
+    "graph"
+  ],
+  "categories": [
+    "charts",
+    "money"
+  ]
+}

icons/candlestick-chart.svg

@@ -0,0 +1,19 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M9 5v4" />
+  <rect width="4" height="6" x="7" y="9" rx="1" />
+  <path d="M9 15v2" />
+  <path d="M17 3v2" />
+  <rect width="4" height="8" x="15" y="5" rx="1" />
+  <path d="M17 13v3" />
+  <path d="M3 3v18h18" />
+</svg>