Timescale

**Summary:**
Fixes a number of deprecation issues, and adds some useful functionality to the `Timescale` class.

**Itemized Changes:**
* `docs`: add zenodo links and badges 7
* `ci`: set micromamba version to latest 10
* `docs`: use micromamba for RTD builds 10
* `docs`: add logo and adjust style 10
* `docs`: adjust colors 11
* `feat`: add function to convert from calendar dates 21
* `feat`: add min, max and mean functions to `Timescale` class 21
* `fix`: update version to replace deprecated `pkg_resources` 24
* `fix`: updated ssl context to fix deprecation error 26
* `refactor`: move the immutable parameters in `Timescale` class 51
* `feat`: added quarter year approximate conversions 55
* `feat`: added `_from_sec` dictionary for named time units 56
* `fix`: replaced deprecated `datetime.datetime.utcnow` 57
* `fix`: updated urls and ftp links for updating the leap seconds list 57

**Full Changelog**: https://github.com/tsutterley/timescale/compare/0.0.2...0.0.3

**Summary:**
Updates the documentation to note the availability on `pypi` and `conda-forge`.

**Itemized Changes:**
* `docs`: add badges for `pypi` and `conda` 4
* `docs`: add updated install instructions for `pypi` and `conda` 4
* `feat`: add attribute for decimal year in `Timescale` 6

**Full Changelog**: https://github.com/tsutterley/timescale/compare/0.0.1...0.0.2

**Summary:**
Initial release of `timescale`, a project for time and astronomical calculations. Calculates leap seconds, universal time (UT), dynamic time (TT), delta time from epochs, and Earth orientation parameters (EOPs).

**Itemized Changes:**
* `feat`: initial repo commit :tada: (1)

**Full Changelog**: https://github.com/tsutterley/timescale/commits/0.0.1