* fix: #116, using std::vector instead of bare array .
* added guardian checks .
* now unwanted cells to the edges will no longer be affected
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Co-authored-by: handama <55939089+handama@users.noreply.github.com>
* split out overlay handling function, and change digit to meaningful enum values .
* GetStructureData returns ID and readd using the same .
* resolved data insert sequence issue .
* fixed overlay encoding result differs from original .
* some type adjustments to silence compile warning, UT case added .
* escape Chinese comments .
* added compile dependency of UT on MissionPackLib .
