add nws/lsrs_by_point service

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.47% :tada:

Comparison is base (2f2bb2c) 81.83% compared to head (08e781d) 82.30%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #145 +/- ## ========================================== + Coverage 81.83% 82.30% +0.47% ========================================== Files 63 65 +2 Lines 1982 2035 +53 ========================================== + Hits 1622 1675 +53 Misses 360 360 ``` | [Files Changed](https://app.codecov.io/gh/akrherz/iem-web-services/pull/145?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=daryl+herzmann) | Coverage Δ | | |---|---|---| | [src/iemws/main.py](https://app.codecov.io/gh/akrherz/iem-web-services/pull/145?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=daryl+herzmann#diff-c3JjL2llbXdzL21haW4ucHk=) | `100.00% <100.00%> (ø)` | | | [src/iemws/models/nws/lsrs\_by\_point.py](https://app.codecov.io/gh/akrherz/iem-web-services/pull/145?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=daryl+herzmann#diff-c3JjL2llbXdzL21vZGVscy9ud3MvbHNyc19ieV9wb2ludC5weQ==) | `100.00% <100.00%> (ø)` | | | [src/iemws/services/nws/lsrs\_by\_point.py](https://app.codecov.io/gh/akrherz/iem-web-services/pull/145?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=daryl+herzmann#diff-c3JjL2llbXdzL3NlcnZpY2VzL253cy9sc3JzX2J5X3BvaW50LnB5) | `100.00% <100.00%> (ø)` | |

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