Add meanings table

[oruebel]

Fix #284

Implement new MeaningsTable type:

• Implement the new src/nwb/hdmf/table/MeaningsTable.* source for MeaningsTable
• Implement comprehensive unit tests for MeaningsTable

Update DynamicTable to support adding MeaningsTables:

• Added "DEFINE_UNNAMED_REGISTERED_FIELD(" to create readMeaningsTable for reading MeaningsTables associated with a DynamicTable. This also creates createMeaningsTableInstance methods for creatin a new MeaningsTables that is not yet initialized.
• Added DynamicTable.createMeaningsTable methods for creating a fully initialized MeaningsTable that is associated with a particular column of the DynamicTable
• Add unit tests to test the new DynamicTable.createMeaningsTable and DynamicTable.readMeaningsTable methods.
  - [ ] Update the docs/tutorials as necessary to describe the use of MeaningsTable alongside DynamicTable This will be part of follow-up once the full stack for EventsTable has been added

Other Changes

• Updated ElectrodesTable.initialize to add a new optional parameter rowChunkSize. Similar to the MeaningsTable the existing ElectrodesTable also creates pre-defined columns in initialize. Currently the chunking was set in ElectrodesTable to 1, which is too small. Adding rowChunkSize increases the default to 100 and allows the caller to set the chunk size.
• Updated the CHANGELOG

[Copilot]

Pull request overview

This PR adds first-class support for the new HDMF Common MeaningsTable type and wires it into DynamicTable, while also improving ElectrodesTable dataset chunking by making row chunk size configurable (defaulting to 100) to avoid inefficient chunking of 1.

Changes:

• Added src/nwb/hdmf/table/MeaningsTable.* implementing the new MeaningsTable registered type and initialization logic.
• Extended DynamicTable with support for creating/reading MeaningsTable instances (including a convenience createMeaningsTable API) and added unit tests.
• Updated ElectrodesTable.initialize / NWBFile::createElectrodesTable and related tests to use and verify a configurable row chunk size.

Reviewed changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
tests/testRecordingWorkflow.cpp	Updates electrodes table creation to pass a row chunk size and asserts expected HDF5 chunking.
tests/testRecordingObjects.cpp	Updates electrodes table creation to pass a row chunk size and asserts expected HDF5 chunking.
tests/testNWBFile.cpp	Updates electrodes table creation to pass a row chunk size and asserts expected HDF5 chunking.
tests/testMeaningsTable.cpp	Adds new unit tests covering MeaningsTable initialization, chunking, linking, and data read/write.
tests/testDynamicTable.cpp	Adds tests for DynamicTable::createMeaningsTable and DynamicTable::readMeaningsTable.
tests/CMakeLists.txt	Adds the new testMeaningsTable.cpp to the test target.
src/nwb/NWBFile.hpp	Extends createElectrodesTable API with optional rowChunkSize parameter.
src/nwb/NWBFile.cpp	Passes rowChunkSize through to ElectrodesTable::initialize.
src/nwb/hdmf/table/MeaningsTable.hpp	Introduces the MeaningsTable type and its registered fields (value/meaning/target).
src/nwb/hdmf/table/MeaningsTable.cpp	Implements MeaningsTable::initialize (datasets + target link).
src/nwb/hdmf/table/DynamicTable.hpp	Adds API/macro support for MeaningsTable plus a convenience creation method.
src/nwb/hdmf/table/DynamicTable.cpp	Implements DynamicTable::createMeaningsTable (group creation + initialization).
src/nwb/file/ElectrodesTable.hpp	Extends ElectrodesTable::initialize with optional rowChunkSize.
src/nwb/file/ElectrodesTable.cpp	Applies rowChunkSize to dataset chunking during initialization.
CMakeLists.txt	Adds MeaningsTable.cpp to the library build.

[Copilot]

Pull request overview

Copilot reviewed 16 out of 16 changed files in this pull request and generated 4 comments.