experiment with workaround for cdt inefficient memcpy usage

[spoonincode]

experiment with workaround for AntelopeIO/cdt#102,

• prototype workaround
• collect performance delta to see if worth it
• add unit tests etc

[ericpassmore]

Note:start
category: System Stability
component: Internal
summary: Prototype solutions to make CDT memcopy more efficient.
Note:end