Enhancement: Enable no-std Support and Float Type Flexibility

[p3zhy]

This pull request enhances the satellite Rust crate by enabling it to be used without the standard library (#![no_std]) and providing flexibility in the choice of floating-point types. The changes in this pull request address limitations in float types in a no-std environment by integrating the micromath crate and implementing a mechanism to define float types based on whether the standard library feature is enabled or disabled.

Key Changes:

• Enabled satellite crate to be used without the standard library by disabling the default std feature.
• Integrated the micromath crate to address limitations in float types in a no-std environment.
• Implemented a float type definition that switches between f32 and f64 based on the presence of the standard library feature.
• Introduced a configurable epsilon value for floating-point comparisons, providing higher accuracy in unit tests when the standard library feature is active.

Testing:

• Unit tests have been updated to accommodate the configurable epsilon value, ensuring consistency and accuracy across different environments.
• For environments with the standard library feature enabled, unit tests are executed with higher accuracy using the defined epsilon value (SIMILAR_EPSILON).

Additional Notes:

• This enhancement improves the versatility of the satellite crate, making it more accessible for use in a broader range of applications, particularly those targeting resource-constrained environments.