Data Structure Overhaul

[pulsipher]

This pull request denotes a fundamental change in the underlying structure and internal API. However, the public API remains similar to previous versions and modeling shouldn't be largely unbroken. These changes have greatly improved the performance, address a number of fundamental bugs, unify the structure, enhance the structure for future development, and more.

Notable feature enhancements include:

• Object distinction between finite, independent, and dependent parameters
• Ability to define start value functions (e.g., trajectories) for infinite variables
• Intelligent support management to ensure uniqueness and classification based on how each one is generated
• More robust and efficient measures that are able to generate supports on demand at the transcription step
• Much more robust and sophisticated measure evaluation (including analytic evaluation where appropriate)
• A complete reworking of TranscriptionOpt, making it much more simple and efficient.
• Queries now support any variable, measure, expression, or constraint
• A greatly enhanced InfiniteModel structure that is far less verbose than before
• Much more

This pull request closes the following:

• closes [BUG] Safe Attribute Accessing #54
• closes [FEATURE] Google Analytics #52
• closes [FEATURE] Update with JuMP 0.21.2 #49
• closes [FEATURE] Restructure Transcribe.jl #47
• closes [FEATURE] Make a Dependent Multi-Dimensional Parameter Object #46
• closes [FEATURE] Trajectory Start Values #43
• closes [FEATURE] Streamline TranscriptionOpt #42
• closes [FEATURE] Enhanced InfiniteModel Storage #41
• closes [FEATURE] Intelligent Integral Defaults #40
• closes [FEATURE] Support/Coefficient DataType #38
• closes [FEATURE] Analytic Measure Evaluation #34

This also addresses #18 and #57.

[pulsipher]

Looks good to me

[codecov]

Codecov Report

Merging #58 into master will decrease coverage by 0.14%.
The diff coverage is 99.58%.

@@            Coverage Diff             @@
##           master      #58      +/-   ##
==========================================
- Coverage   99.78%   99.64%   -0.15%     
==========================================
  Files          28       33       +5     
  Lines        3272     4179     +907     
==========================================
+ Hits         3265     4164     +899     
- Misses          7       15       +8     

Impacted Files	Coverage Δ
src/Collections/Collections.jl	100.00% <ø> (ø)
src/InfiniteOpt.jl	100.00% <ø> (ø)
src/TranscriptionOpt/TranscriptionOpt.jl	100.00% <ø> (ø)
src/measures.jl	99.68% <ø> (-0.32%)	⬇️
src/objective.jl	100.00% <ø> (ø)
src/optimize.jl	100.00% <ø> (ø)
src/point_variables.jl	100.00% <ø> (ø)
src/reduced_variables.jl	100.00% <ø> (ø)
src/results.jl	100.00% <ø> (ø)
src/scalar_parameters.jl	99.43% <ø> (ø)
... and 44 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update ab7e56a...e60232b. Read the comment docs.