Grepros

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* fix raising error in ROS1 live topics if message class not locally available
* fix generating ROS1 message classes dynamically in multi-threaded environment
* fix caching generated message classes in ROS1
* update step, the vendored template library
* ensure compatibility with Python 3.12+

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* ensure Python2 compatibility under ROS1 Melodic

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* make grepros conveniently usable as a library
* add --no-highlight option
* add --stop-on-error option
* rename options --print-field and --no-print-field to --emit-field and --no-emit-field
* support --emit-field --no-emit-field in CSV and Parquet exports
* handle all numpy types in ROS2 messages, not only ndarrays
* avoid raising errors for unknown message types in ROS2 bags if not reading those topics
* fix grepping and emitting specific messages fields only
* fix not skipping live topics published by grepros itself in ROS2
* fix embag reader
* verify output targets being writable on startup
* provide connection header in writing ROS1 bag if topic has multiple types
* smooth over rosbag bug of ignoring topic and time filters in format v1.2
* print ROS1 master URI in verbose mode on connecting to live topics
* raise error on loading Parquet plugin if libraries unavailable
* support "postgres://" as auto-detected Postgres target in addition to "postgresql://"
* use bagfile format as last when auto-detecting output format
* add MCAP bag interface
* auto-detect MCAP output by file extension
* add inputs.AppSource and outputs.AppSink
* add api.deserialize_message() dict_to_message() make_full_typename() time_message() to_time()
* rename api.get_message_data() to serialize_message()
* fix api.message_to_dict() giving invalid names for temporal types in ROS2

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* add nesting=array|all to --write Parquet options
* add idgenerator=callable to --write Parquet options
* add api.canonical()
* match bounded array fields to configured output types properly
in Parquet/Postgres/SQL/SQLite output, like "uint8[10]" for "BYTEA" in Postgres
* workaround for ROS1 time/duration fields defined as int32 while actually being uint32
* fix date formatting in HTML output

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* add --plugin grepros.plugins.mcap (MCAP input and output)
* refactor internal bag API
* fix message type definition parsing yielding duplicate subtypes
* fix error in example usage text

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* fix space leak in caching message metadata