Add issue templates

There are wa too useless issues lately, and I'm starting to get tired of this...

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,36 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**DISCLAIMER**
+- Please, before reporting a bug make sure you have read the javadocs. If, by reading the issue, I realize you skipped this step it is very likely I will close the issue without even answering, marking it as 'invalid'! MaterialFX documentation is gold, make use of it!
+- Some people seem to not realize that MaterialFX has a demo, basically a workbech for MaterialFX controls, and that it is a very valuable resource since there are a LOT of examples on how to use them.
+If your issue is about "not knowing how to do this and that" please before asking check the demo maybe the answer is already there.
+- Often the issues are about controls customization. Please before reporting the issue make sure to check the CSS files (both in [materialfx](https://github.com/palexdev/MaterialFX/tree/main/materialfx/src/main/resources/io/github/palexdev/materialfx/css) and [demo](https://github.com/palexdev/MaterialFX/tree/main/demo/src/main/resources/io/github/palexdev/materialfx/demo/css) modules) as the answer may already be there.
+**Now that you have read the disclaimer you can remove it and proceed with the issue report**
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**[MRE](https://bit.ly/3k5gTJf)(Minimal Reproducible Example)**
+- This is almost mandatory, if I can't reproduce the issue then it doesn't exist
+- The preferred way to submit a MRE would be to zip it and attach it here
+- If possible the MRE should make use of Gradle(preferred) or Maven to quickly setup the project
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/general.md

@@ -0,0 +1,15 @@
+---
+name: General
+about: This is for anything else that is not a bug or a feature request
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**DISCLAIMER**
+- Please, before reporting this issue make sure you have read the javadocs. If, by reading the issue, I realize you skipped this step it is very likely I will close the issue without even answering, marking it as 'invalid'! MaterialFX documentation is gold, make use of it!
+- Some people seem to not realize that MaterialFX has a demo, basically a workbech for MaterialFX controls, and that it is a very valuable resource since there are a LOT of examples on how to use them.
+If your issue is about "not knowing how to do this and that" please before asking check the demo maybe the answer is already there.
+- Often the issues are about controls customization. Please before reporting the issue make sure to check the CSS files (both in [materialfx](https://github.com/palexdev/MaterialFX/tree/main/materialfx/src/main/resources/io/github/palexdev/materialfx/css) and [demo](https://github.com/palexdev/MaterialFX/tree/main/demo/src/main/resources/io/github/palexdev/materialfx/demo/css) modules) as the answer may already be there.
+**Now that you have read the disclaimer you can remove it and proceed with the issue report**