feat(platform): migrate LCD assets to PNG and expand flash partitions

components/platform/third_party/lodepng/LICENSE

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+Copyright (c) 2005-2018 Lode Vandevenne
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+    1. The origin of this software must not be misrepresented; you must not
+    claim that you wrote the original software. If you use this software
+    in a product, an acknowledgment in the product documentation would be
+    appreciated but is not required.
+
+    2. Altered source versions must be plainly marked as such, and must not be
+    misrepresented as being the original software.
+
+    3. This notice may not be removed or altered from any source
+    distribution.

components/platform/third_party/lodepng/lodepng_esp_alloc.cpp

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+#include <stddef.h>
+#include <stdlib.h>
+
+#include "esp_heap_caps.h"
+#include "soc/soc_caps.h"
+
+void *lodepng_malloc(size_t size)
+{
+#if SOC_SPIRAM_SUPPORTED
+    void *ptr = heap_caps_malloc(size, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT);
+    if (ptr != NULL) {
+        return ptr;
+    }
+#endif
+    return malloc(size);
+}
+
+void *lodepng_realloc(void *ptr, size_t new_size)
+{
+#if SOC_SPIRAM_SUPPORTED
+    void *new_ptr = heap_caps_realloc(ptr, new_size, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT);
+    if (new_ptr != NULL) {
+        return new_ptr;
+    }
+#endif
+    return realloc(ptr, new_size);
+}
+
+void lodepng_free(void *ptr)
+{
+    free(ptr);
+}

components/platform/third_party/lodepng/lodepng_esp_bridge.cpp

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+#include <stddef.h>
+
+#include "lodepng.h"
+
+extern "C" unsigned lodepng_esp_decode32(unsigned char **out,
+                                         unsigned *w,
+                                         unsigned *h,
+                                         const unsigned char *in,
+                                         size_t insize)
+{
+    return lodepng_decode32(out, w, h, in, insize);
+}
+
+extern "C" const char *lodepng_esp_error_text(unsigned code)
+{
+    return lodepng_error_text(code);
+}