REFACTOR: improve import_nastran method #92

Job	Run time
Check the title of the pull request	2s
Documentation style check	31s
Build wheelhouse and smoke tests (ubuntu-latest, 3.7)	2m 9s
Build wheelhouse and smoke tests (ubuntu-latest, 3.8)	2m 25s
Build wheelhouse and smoke tests (ubuntu-latest, 3.9)	2m 29s
Build wheelhouse and smoke tests (ubuntu-latest, 3.10)	2m 48s
Build wheelhouse and smoke tests (ubuntu-latest, 3.11)	2m 24s
Build wheelhouse and smoke tests (windows-latest, 3.7)	3m 35s
Build wheelhouse and smoke tests (windows-latest, 3.8)	5m 6s
Build wheelhouse and smoke tests (windows-latest, 3.9)	3m 38s
Build wheelhouse and smoke tests (windows-latest, 3.10)	4m 9s
Build wheelhouse and smoke tests (windows-latest, 3.11)	5m 1s
Documentation build without examples	2m 16s
Documentation build with examples	0s
Testing and coverage (Windows)	21s
Testing and coverage (Linux)	1s
Testing solvers and coverage (Linux)	1s
Testing IronPython and coverage (Windows)	31s
Testing solvers and coverage (Windows)	22s
Package library	1s
Release project	1s
Upload release documentation	1s
Deploy stable docs index	1s
	37m 53s

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