[C++][Parquet] Support reading dictionary encoded boolean pages

[ArnavBalyan]

Rationale for this change

• DictDecoderImpl for boolean today throws NYI today, hence dict encoded boolean pages fail on read.
• Since dict encoded boolean is spec compliant, certain writers can write dictionary encoded boolean pages which can't be read by parquet reader.

What changes are included in this PR?

• Implement boolean dict decoder which decodes/ writes the output bytes into caller's buffer.
• Added bool decode UT.

Are these changes tested?

• Yes

Are there any user-facing changes?

• Yes

[github-actions]

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[ArnavBalyan]

cc @wgtmac thanks :)