bug distributed scalar

[mtar]

Description

Include a summary of the change/s.
Please also include relevant motivation and context. List any dependencies that are required for this change.

This PR fixes the error creating a scalar with split axis != None. The axis will be set to None implicitly.

Issue/s resolved: #492

Changes proposed:

• In sanitize axis change axis to None if len(shape) == 0

Type of change

Remove irrelevant options:

• Bug fix (non-breaking change which fixes an issue)

Due Diligence

• All split configurations tested
• Multiple dtypes tested in relevant functions
• Documentation updated (if needed)
• Updated changelog.md under the title "Pending Additions"

Does this change modify the behaviour of other functions? If so, which?

yes / no

[codecov]

Codecov Report

Merging #507 into master will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #507   +/-   ##
=======================================
  Coverage   96.60%   96.60%           
=======================================
  Files          68       68           
  Lines       14091    14094    +3     
=======================================
+ Hits        13612    13615    +3     
  Misses        479      479           

Impacted Files	Coverage Δ
heat/core/stride_tricks.py	100.00% <100.00%> (ø)
heat/core/tests/test_stride_tricks.py	91.52% <100.00%> (+0.14%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 23d4be7...99233e9. Read the comment docs.