dts: update params and parser docstrings

Address a few errors reported by Sphinx when generating documentation:
framework/params/__init__.py:docstring of framework.params.modify_str:3:
WARNING:

dts: update params and parser docstrings

Address a few errors reported by Sphinx when generating documentation:
framework/params/__init__.py:docstring of framework.params.modify_str:3:
WARNING: Inline interpreted text or phrase reference start-string
without end-string.
framework/params/eal.py:docstring of framework.params.eal.EalParams:35:
WARNING: Definition list ends without a blank line; unexpected
unindent.
framework/params/types.py:docstring of framework.params.types:8:
WARNING: Inline strong start-string without end-string.
framework/params/types.py:docstring of framework.params.types:9:
WARNING: Inline strong start-string without end-string.
framework/parser.py:docstring of framework.parser.TextParser:33: ERROR:
Unexpected indentation.
framework/parser.py:docstring of framework.parser.TextParser:43: ERROR:
Unexpected indentation.
framework/parser.py:docstring of framework.parser.TextParser:49: ERROR:
Unexpected indentation.
framework/parser.py:docstring of framework.parser.TextParser.wrap:8:
ERROR: Unexpected indentation.
framework/parser.py:docstring of framework.parser.TextParser.wrap:9:
WARNING: Block quote ends without a blank line; unexpected unindent.

Fixes: 87ba4cdc0dbb ("dts: use Unpack for type checking and hinting")
Fixes: d70159cb62f5 ("dts: add params manipulation module")
Fixes: 967fc62b0a43 ("dts: refactor EAL parameters class")
Fixes: 818fe14e3422 ("dts: add parsing utility module")

Signed-off-by: Juraj Linkeš <juraj.linkes@pantheon.tech>
Reviewed-by: Luca Vizzarro <luca.vizzarro@arm.com>
Reviewed-by: Jeremy Spewock <jspewock@iol.unh.edu>

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dts: add parsing utility module

Adds parsing text into a custom dataclass. It provides a new
`TextParser` dataclass to be inherited. This implements the `parse`
method, which combined with the parse

dts: add parsing utility module

Adds parsing text into a custom dataclass. It provides a new
`TextParser` dataclass to be inherited. This implements the `parse`
method, which combined with the parser functions, it can automatically
parse the value for each field.

This new utility will facilitate and simplify the parsing of complex
command outputs, while ensuring that the codebase does not get bloated
and stays flexible.

Signed-off-by: Luca Vizzarro <luca.vizzarro@arm.com>
Reviewed-by: Paul Szczepanek <paul.szczepanek@arm.com>
Reviewed-by: Juraj Linkeš <juraj.linkes@pantheon.tech>
Reviewed-by: Jeremy Spewock <jspewock@iol.unh.edu>
Reviewed-by: Nicholas Pratte <npratte@iol.unh.edu>
Tested-by: Nicholas Pratte <npratte@iol.unh.edu>

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