[Ruby] Add builder API for red-arrow-format

### Describe the enhancement requested

red-arrow-format is a pure Ruby Apache Arrow reader/writer implementation. It can write Apache Arrow IPC file/streaming format data but users need to build Apache Arrow in-memory layout data by themselves. For example, `[1, 2, 3].pack("l") + padding` for int32 array. It's inconvenient. We should provide builder API for easy to build Apache Arrow in-memory layout data.

### Component(s)

Ruby

The issue identifies red-arrow-format's pure Ruby reader/writer and existing Apache Arrow IPC file and streaming support, but no files or tests. Start by locating that Ruby implementation and reviewing how callers currently construct in-memory layouts. Done should mean a defined builder API with tests showing that it produces the required Apache Arrow in-memory layout data without manual packing and padding.

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