ArrayExt

Expand the array and set the average value for front, back, left and right.

1.0, 2.0, 3.0,

4.0, 5.0, 6.0,

7.0, 8.0, 9.0,

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1.0, 1.5, 2.0, 2.5, 3.0,

2.5, 3.0, 3.5, 4.0, 4.5,

4.0, 4.5, 5.0, 5.5, 6.0,

5.5, 6.0, 6.5, 7.0, 7.5,

7.0, 7.5, 8.0, 8.5, 9.0,

update histry

v0.0.1

Test version released