add shape to field

[samwaseda]

Following this discussion I added shape to the field.

[github-actions[bot]]

:point_left: Launch a binder notebook on branch _pyiron/uniton/extendfields

[codacy-production[bot]]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
:white_check_mark: +0.56% (target: -1.00%)	:white_check_mark: 100.00%

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (7edc4829e224a93a7a44f8f0e4aba482333603fe) | 55 | 53 | 96.36% | | | Head commit (496b7d51cda6e2b5101875590a5d02a2b1b5da70) | 65 (+10) | 63 (+10) | 96.92% (**+0.56%**) | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#7) | 2 | 2 | **100.00%** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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[coveralls]

Pull Request Test Coverage Report for Build 11076635860

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 96.923%

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Totals
Change from base Build 10919663274:	0.0%
Covered Lines:	63
Relevant Lines:	65

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💛 - Coveralls