[epaper_spi] New epaper component (#10462)

Co-authored-by: Keith Burzinski <kbx81x@gmail.com>
Co-authored-by: Tudor Sandu <tm.sandu@gmail.com>
Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>

esphome/components/split_buffer/split_buffer.h

@@ -0,0 +1,40 @@
+#pragma once
+
+#include <cstdint>
+#include <cstdlib>
+
+namespace esphome::split_buffer {
+
+class SplitBuffer {
+ public:
+  SplitBuffer() = default;
+  ~SplitBuffer();
+
+  // Initialize the buffer with the desired total length
+  bool init(size_t total_length);
+
+  // Free all allocated buffers
+  void free();
+
+  // Access operators
+  uint8_t &operator[](size_t index);
+  const uint8_t &operator[](size_t index) const;
+
+  // Get the total length
+  size_t size() const { return this->total_length_; }
+
+  // Get buffer information
+  size_t get_buffer_count() const { return this->buffer_count_; }
+  size_t get_buffer_size() const { return this->buffer_size_; }
+
+  // Check if successfully initialized
+  bool is_valid() const { return this->buffers_ != nullptr && this->buffer_count_ > 0; }
+
+ private:
+  uint8_t **buffers_{nullptr};
+  size_t buffer_count_{0};
+  size_t buffer_size_{0};
+  size_t total_length_{0};
+};
+
+}  // namespace esphome::split_buffer