Fixing NodeType expressions in SymmetryAccess

[llaniewski]

Fixes #492

TODO after:

1. make some tests for autosym
2. make SymmetryAccess work with arbitrary lattice

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (928c436) 39.64% compared to head (fde4de7) 39.64%. Report is 2 commits behind head on develop.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #498 +/- ## ======================================== Coverage 39.64% 39.64% ======================================== Files 184 184 Lines 8483 8483 ======================================== Hits 3363 3363 Misses 5120 5120 ``` | [Flag](https://app.codecov.io/gh/CFD-GO/TCLB/pull/498/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=CFD-GO) | Coverage Δ | | |---|---|---| | [d2q9](https://app.codecov.io/gh/CFD-GO/TCLB/pull/498/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=CFD-GO) | `28.02% <ø> (ø)` | | | [d3q27_PSM_NEBB](https://app.codecov.io/gh/CFD-GO/TCLB/pull/498/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=CFD-GO) | `32.12% <ø> (ø)` | | | [d3q27_pf_velocity](https://app.codecov.io/gh/CFD-GO/TCLB/pull/498/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=CFD-GO) | `27.31% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=CFD-GO#carryforward-flags-in-the-pull-request-comment) to find out more.

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