Implement get_spaced/put_spaced for non-dictionary encoding

[coveralls]

Pull Request Test Coverage Report for Build 667

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 91 unchanged lines in 5 files lost coverage.
• Overall coverage decreased (-0.04%) to 95.68%

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Files with Coverage Reduction	New Missed Lines	%
file/properties.rs	4	90.97%
util/bit_util.rs	8	97.6%
data_type.rs	15	89.47%
encodings/decoding.rs	30	95.9%
encodings/encoding.rs	34	94.57%
<!--	Total:	91		-->

Totals
Change from base Build 661:	-0.04%
Covered Lines:	13088
Relevant Lines:	13679

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💛 - Coveralls